{"items":[{"id":"NVI-00010127","kind":"vulnerability","title":"Google Guava: CompactHashMap/CompactHashSet/MapMakerInternalMap deserialization triggers uncontrolled memory allocation","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-xxph-c9ww-hj94","CVE-2026-102554"],"plain_summary":"GitHub lists this reviewed advisory for com.google.guava:guava. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-2979038a49c72ae8353a0dea27c67d48"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-27T14:27:55.000Z","value":"5.9 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-207b78daf26d2ab49977402a4a228842"},{"kind":"CVSS","as_of":"2026-10-09T18:17:01.380Z","value":"8.2 HIGH (4.0)","meaning":"cve-coordination@google.com severity; no combined Null risk score.","source_id":"sr-489d9dc9d592735da46b9b9e6aebf396"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.352%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.28895. Missing scores are unknown.","source_id":"sr-2979038a49c72ae8353a0dea27c67d48"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-207b78daf26d2ab49977402a4a228842","url":"https://github.com/advisories/GHSA-xxph-c9ww-hj94","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xxph-c9ww-hj94","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-489d9dc9d592735da46b9b9e6aebf396","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102554","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-102554","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:04.487Z"},{"id":"sr-2979038a49c72ae8353a0dea27c67d48","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-102554","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:44:07.769Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-207b78daf26d2ab49977402a4a228842"],"technology":"com.google.guava:guava","known_exclusions":[],"conditions_summary":"# CompactHashMap/CompactHashSet/MapMakerInternalMap native deserialization triggers uncontrolled memory allocation\n\n## Summary\n\n`CompactHashMap`, `CompactHashSet`, and `MapMakerInternalMap` implement `readObject(ObjectInputStream)` by reading an attacker-controlled `elementCount` or `initialCapacity` from the stream. On the very first insertion during or after deserialization (for the `CompactHash*` collections, inside `allocArrays()`) or immediately during deserialization (for `MapMakerInternalMap`), the implementation eagerly allocates arrays sized to that full, unvalidated value (up to `CompactHashing.MAX_SIZE` = 2^30-1, ~1.07 billion, for example) before the rest of the stream's actual content has been consumed. A 72-byte malicious serialized stream containing a single tiny element can force a multi-gigabyte allocation and crash a JVM with `OutOfMemoryError`, dynamically confirmed against the current release.\n\n## Details\n\n`CompactHashMap.readObject()` (`guava/src/com/google/common/collect/CompactHashMap.java`):\n\n```java\nprivate void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {\n  stream.defaultReadObject();\n  int elementCount = stream.readInt","public_affected_ranges":[">= 4.0, <= 33.7.1"]}],"null_published_at":"2026-11-08T19:53:33.624Z","source_updated_at":"2026-10-27T14:27:55.000Z","source_disclosed_at":"2026-10-27T14:27:53.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T22:06:46.371Z"},{"id":"NVI-00010127","kind":"vulnerability","title":"Google Guava: CompactHashMap/CompactHashSet/MapMakerInternalMap deserialization triggers uncontrolled memory allocation","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-xxph-c9ww-hj94","CVE-2026-102554"],"plain_summary":"GitHub lists this reviewed advisory for com.google.guava:guava. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-09afcab4016017451e55bc83fcde3c71"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-27T14:27:55.000Z","value":"5.9 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-207b78daf26d2ab49977402a4a228842"},{"kind":"CVSS","as_of":"2026-10-09T18:17:01.380Z","value":"8.2 HIGH (4.0)","meaning":"cve-coordination@google.com severity; no combined Null risk score.","source_id":"sr-489d9dc9d592735da46b9b9e6aebf396"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.352%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.28857. Missing scores are unknown.","source_id":"sr-09afcab4016017451e55bc83fcde3c71"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-207b78daf26d2ab49977402a4a228842","url":"https://github.com/advisories/GHSA-xxph-c9ww-hj94","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xxph-c9ww-hj94","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-489d9dc9d592735da46b9b9e6aebf396","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102554","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-102554","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:04.487Z"},{"id":"sr-09afcab4016017451e55bc83fcde3c71","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-102554","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.262Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-207b78daf26d2ab49977402a4a228842"],"technology":"com.google.guava:guava","known_exclusions":[],"conditions_summary":"# CompactHashMap/CompactHashSet/MapMakerInternalMap native deserialization triggers uncontrolled memory allocation\n\n## Summary\n\n`CompactHashMap`, `CompactHashSet`, and `MapMakerInternalMap` implement `readObject(ObjectInputStream)` by reading an attacker-controlled `elementCount` or `initialCapacity` from the stream. On the very first insertion during or after deserialization (for the `CompactHash*` collections, inside `allocArrays()`) or immediately during deserialization (for `MapMakerInternalMap`), the implementation eagerly allocates arrays sized to that full, unvalidated value (up to `CompactHashing.MAX_SIZE` = 2^30-1, ~1.07 billion, for example) before the rest of the stream's actual content has been consumed. A 72-byte malicious serialized stream containing a single tiny element can force a multi-gigabyte allocation and crash a JVM with `OutOfMemoryError`, dynamically confirmed against the current release.\n\n## Details\n\n`CompactHashMap.readObject()` (`guava/src/com/google/common/collect/CompactHashMap.java`):\n\n```java\nprivate void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {\n  stream.defaultReadObject();\n  int elementCount = stream.readInt","public_affected_ranges":[">= 4.0, <= 33.7.1"]}],"null_published_at":"2026-11-05T19:10:23.238Z","source_updated_at":"2026-10-27T14:27:55.000Z","source_disclosed_at":"2026-10-27T14:27:53.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T22:06:46.371Z"},{"id":"NVI-00010127","kind":"vulnerability","title":"Google Guava: CompactHashMap/CompactHashSet/MapMakerInternalMap deserialization triggers uncontrolled memory allocation","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-xxph-c9ww-hj94","CVE-2026-102554"],"plain_summary":"GitHub lists this reviewed advisory for com.google.guava:guava. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-09afcab4016017451e55bc83fcde3c71"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-27T14:27:55.000Z","value":"5.9 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-207b78daf26d2ab49977402a4a228842"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.352%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.28857. Missing scores are unknown.","source_id":"sr-09afcab4016017451e55bc83fcde3c71"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-207b78daf26d2ab49977402a4a228842","url":"https://github.com/advisories/GHSA-xxph-c9ww-hj94","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xxph-c9ww-hj94","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-09afcab4016017451e55bc83fcde3c71","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-102554","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.262Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-207b78daf26d2ab49977402a4a228842"],"technology":"com.google.guava:guava","known_exclusions":[],"conditions_summary":"# CompactHashMap/CompactHashSet/MapMakerInternalMap native deserialization triggers uncontrolled memory allocation\n\n## Summary\n\n`CompactHashMap`, `CompactHashSet`, and `MapMakerInternalMap` implement `readObject(ObjectInputStream)` by reading an attacker-controlled `elementCount` or `initialCapacity` from the stream. On the very first insertion during or after deserialization (for the `CompactHash*` collections, inside `allocArrays()`) or immediately during deserialization (for `MapMakerInternalMap`), the implementation eagerly allocates arrays sized to that full, unvalidated value (up to `CompactHashing.MAX_SIZE` = 2^30-1, ~1.07 billion, for example) before the rest of the stream's actual content has been consumed. A 72-byte malicious serialized stream containing a single tiny element can force a multi-gigabyte allocation and crash a JVM with `OutOfMemoryError`, dynamically confirmed against the current release.\n\n## Details\n\n`CompactHashMap.readObject()` (`guava/src/com/google/common/collect/CompactHashMap.java`):\n\n```java\nprivate void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {\n  stream.defaultReadObject();\n  int elementCount = stream.readInt","public_affected_ranges":[">= 4.0, <= 33.7.1"]}],"null_published_at":"2026-11-02T20:21:07.839Z","source_updated_at":"2026-10-27T14:27:55.000Z","source_disclosed_at":"2026-10-27T14:27:53.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T22:06:46.371Z"},{"id":"NVI-00010127","kind":"vulnerability","title":"Google Guava: CompactHashMap/CompactHashSet/MapMakerInternalMap deserialization triggers uncontrolled memory allocation","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-xxph-c9ww-hj94","CVE-2026-102554"],"plain_summary":"GitHub lists this reviewed advisory for com.google.guava:guava. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-207b78daf26d2ab49977402a4a228842"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-27T14:27:55.000Z","value":"5.9 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-207b78daf26d2ab49977402a4a228842"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-207b78daf26d2ab49977402a4a228842","url":"https://github.com/advisories/GHSA-xxph-c9ww-hj94","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xxph-c9ww-hj94","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-207b78daf26d2ab49977402a4a228842"],"technology":"com.google.guava:guava","known_exclusions":[],"conditions_summary":"# CompactHashMap/CompactHashSet/MapMakerInternalMap native deserialization triggers uncontrolled memory allocation\n\n## Summary\n\n`CompactHashMap`, `CompactHashSet`, and `MapMakerInternalMap` implement `readObject(ObjectInputStream)` by reading an attacker-controlled `elementCount` or `initialCapacity` from the stream. On the very first insertion during or after deserialization (for the `CompactHash*` collections, inside `allocArrays()`) or immediately during deserialization (for `MapMakerInternalMap`), the implementation eagerly allocates arrays sized to that full, unvalidated value (up to `CompactHashing.MAX_SIZE` = 2^30-1, ~1.07 billion, for example) before the rest of the stream's actual content has been consumed. A 72-byte malicious serialized stream containing a single tiny element can force a multi-gigabyte allocation and crash a JVM with `OutOfMemoryError`, dynamically confirmed against the current release.\n\n## Details\n\n`CompactHashMap.readObject()` (`guava/src/com/google/common/collect/CompactHashMap.java`):\n\n```java\nprivate void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {\n  stream.defaultReadObject();\n  int elementCount = stream.readInt","public_affected_ranges":[">= 4.0, <= 33.7.1"]}],"null_published_at":"2026-10-31T22:13:48.416Z","source_updated_at":"2026-10-27T14:27:55.000Z","source_disclosed_at":"2026-10-27T14:27:53.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T22:06:46.371Z"}],"next_cursor":null,"snapshot_revision":"42594"}