{"items":[{"id":"NVI-00011940","kind":"vulnerability","title":"yawkat LZ4 Java: LZ4DecompressorWithLength allocates the unvalidated size from the 4-byte length header, so a 5-byte input triggers a 1 GiB allocation and OutOfMemoryError","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-6cx8-rjf8-pr8g","CVE-2026-106453"],"plain_summary":"GitHub lists this reviewed advisory for at.yawk.lz4:lz4-java, org.lz4:lz4-java. 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-0a173f8a4fc7e36901480fcee5aa62f6"],"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":"2026-10-07T16:17:49.000Z","value":"5.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-66b636efa38bbf2d2560bbaa11f9905d"},{"kind":"CVSS","as_of":"2026-10-07T17:16:48.007Z","value":"5.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-2d3497fe1ba1e7e21e072347a92ff0a2"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.372%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.3111. Missing scores are unknown.","source_id":"sr-0a173f8a4fc7e36901480fcee5aa62f6"}],"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-66b636efa38bbf2d2560bbaa11f9905d","url":"https://github.com/advisories/GHSA-6cx8-rjf8-pr8g","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6cx8-rjf8-pr8g","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:46.232Z"},{"id":"sr-2d3497fe1ba1e7e21e072347a92ff0a2","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106453","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-106453","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:21.903Z"},{"id":"sr-0a173f8a4fc7e36901480fcee5aa62f6","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-2026-106453","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.839Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-66b636efa38bbf2d2560bbaa11f9905d"],"technology":"at.yawk.lz4:lz4-java","known_exclusions":[],"conditions_summary":"### Summary\n\n`LZ4DecompressorWithLength.decompress(byte[], int)` allocates whatever size the 4-byte length header declares, before it reads a single byte of compressed data. A 5-byte input whose header says `0x40000000` makes the JVM commit a gigabyte and can cause heap exhaustion.\n\n### Details\n\n`net.jpountz.lz4.LZ4DecompressorWithLength` reads the header and passes it straight on:\n\n```java\nfinal int destLen = getDecompressedLength(src, srcOff);\nreturn fastDecompressor.decompress(src, srcOff + 4, destLen);\n```\n\nand `net.jpountz.lz4.LZ4FastDecompressor` allocates it:\n\n```java\npublic final byte[] decompress(byte[] src, int srcOff, int destLen) {\n  final byte[] decompressed = new byte[destLen];\n  decompress(src, srcOff, decompressed, 0, destLen);\n  return decompressed;\n}\n```\n\n`getDecompressedLength` performs no validation: no comparison against `src.length`, no ceiling, no rejection of negatives. `LZ4SafeDecompressor.decompress(byte[], int, int, int)` has the same shape with `maxDestLen`.\n\nThe sibling overload that callers pass their own buffer to, `decompress(src, srcOff, dest, destOff, destLen)`, is fine, because there `destLen` is chosen by the caller rather than by the input. The ","public_affected_ranges":["<= 1.11.1"]},{"certainty":"source_listed","source_ids":["sr-66b636efa38bbf2d2560bbaa11f9905d"],"technology":"org.lz4:lz4-java","known_exclusions":[],"conditions_summary":"### Summary\n\n`LZ4DecompressorWithLength.decompress(byte[], int)` allocates whatever size the 4-byte length header declares, before it reads a single byte of compressed data. A 5-byte input whose header says `0x40000000` makes the JVM commit a gigabyte and can cause heap exhaustion.\n\n### Details\n\n`net.jpountz.lz4.LZ4DecompressorWithLength` reads the header and passes it straight on:\n\n```java\nfinal int destLen = getDecompressedLength(src, srcOff);\nreturn fastDecompressor.decompress(src, srcOff + 4, destLen);\n```\n\nand `net.jpountz.lz4.LZ4FastDecompressor` allocates it:\n\n```java\npublic final byte[] decompress(byte[] src, int srcOff, int destLen) {\n  final byte[] decompressed = new byte[destLen];\n  decompress(src, srcOff, decompressed, 0, destLen);\n  return decompressed;\n}\n```\n\n`getDecompressedLength` performs no validation: no comparison against `src.length`, no ceiling, no rejection of negatives. `LZ4SafeDecompressor.decompress(byte[], int, int, int)` has the same shape with `maxDestLen`.\n\nThe sibling overload that callers pass their own buffer to, `decompress(src, srcOff, dest, destOff, destLen)`, is fine, because there `destLen` is chosen by the caller rather than by the input. The ","public_affected_ranges":["<= 1.8.1"]}],"null_published_at":"2026-11-03T17:49:15.034Z","source_updated_at":"2026-10-07T16:17:49.000Z","source_disclosed_at":"2026-10-07T16:17:47.000Z","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":"2026-11-01T00:58:46.232Z"},{"id":"NVI-00011940","kind":"vulnerability","title":"yawkat LZ4 Java: LZ4DecompressorWithLength allocates the unvalidated size from the 4-byte length header, so a 5-byte input triggers a 1 GiB allocation and OutOfMemoryError","revision":2,"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-6cx8-rjf8-pr8g","CVE-2026-106453"],"plain_summary":"GitHub lists this reviewed advisory for at.yawk.lz4:lz4-java, org.lz4:lz4-java. 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-2d3497fe1ba1e7e21e072347a92ff0a2"],"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":"2026-10-07T16:17:49.000Z","value":"5.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-66b636efa38bbf2d2560bbaa11f9905d"},{"kind":"CVSS","as_of":"2026-10-07T17:16:48.007Z","value":"5.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-2d3497fe1ba1e7e21e072347a92ff0a2"}],"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-66b636efa38bbf2d2560bbaa11f9905d","url":"https://github.com/advisories/GHSA-6cx8-rjf8-pr8g","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6cx8-rjf8-pr8g","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:46.232Z"},{"id":"sr-2d3497fe1ba1e7e21e072347a92ff0a2","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106453","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-106453","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:21.903Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-66b636efa38bbf2d2560bbaa11f9905d"],"technology":"at.yawk.lz4:lz4-java","known_exclusions":[],"conditions_summary":"### Summary\n\n`LZ4DecompressorWithLength.decompress(byte[], int)` allocates whatever size the 4-byte length header declares, before it reads a single byte of compressed data. A 5-byte input whose header says `0x40000000` makes the JVM commit a gigabyte and can cause heap exhaustion.\n\n### Details\n\n`net.jpountz.lz4.LZ4DecompressorWithLength` reads the header and passes it straight on:\n\n```java\nfinal int destLen = getDecompressedLength(src, srcOff);\nreturn fastDecompressor.decompress(src, srcOff + 4, destLen);\n```\n\nand `net.jpountz.lz4.LZ4FastDecompressor` allocates it:\n\n```java\npublic final byte[] decompress(byte[] src, int srcOff, int destLen) {\n  final byte[] decompressed = new byte[destLen];\n  decompress(src, srcOff, decompressed, 0, destLen);\n  return decompressed;\n}\n```\n\n`getDecompressedLength` performs no validation: no comparison against `src.length`, no ceiling, no rejection of negatives. `LZ4SafeDecompressor.decompress(byte[], int, int, int)` has the same shape with `maxDestLen`.\n\nThe sibling overload that callers pass their own buffer to, `decompress(src, srcOff, dest, destOff, destLen)`, is fine, because there `destLen` is chosen by the caller rather than by the input. The ","public_affected_ranges":["<= 1.11.1"]},{"certainty":"source_listed","source_ids":["sr-66b636efa38bbf2d2560bbaa11f9905d"],"technology":"org.lz4:lz4-java","known_exclusions":[],"conditions_summary":"### Summary\n\n`LZ4DecompressorWithLength.decompress(byte[], int)` allocates whatever size the 4-byte length header declares, before it reads a single byte of compressed data. A 5-byte input whose header says `0x40000000` makes the JVM commit a gigabyte and can cause heap exhaustion.\n\n### Details\n\n`net.jpountz.lz4.LZ4DecompressorWithLength` reads the header and passes it straight on:\n\n```java\nfinal int destLen = getDecompressedLength(src, srcOff);\nreturn fastDecompressor.decompress(src, srcOff + 4, destLen);\n```\n\nand `net.jpountz.lz4.LZ4FastDecompressor` allocates it:\n\n```java\npublic final byte[] decompress(byte[] src, int srcOff, int destLen) {\n  final byte[] decompressed = new byte[destLen];\n  decompress(src, srcOff, decompressed, 0, destLen);\n  return decompressed;\n}\n```\n\n`getDecompressedLength` performs no validation: no comparison against `src.length`, no ceiling, no rejection of negatives. `LZ4SafeDecompressor.decompress(byte[], int, int, int)` has the same shape with `maxDestLen`.\n\nThe sibling overload that callers pass their own buffer to, `decompress(src, srcOff, dest, destOff, destLen)`, is fine, because there `destLen` is chosen by the caller rather than by the input. The ","public_affected_ranges":["<= 1.8.1"]}],"null_published_at":"2026-11-03T10:03:31.389Z","source_updated_at":"2026-10-07T16:17:49.000Z","source_disclosed_at":"2026-10-07T16:17:47.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T00:58:46.232Z"},{"id":"NVI-00011940","kind":"vulnerability","title":"yawkat LZ4 Java: LZ4DecompressorWithLength allocates the unvalidated size from the 4-byte length header, so a 5-byte input triggers a 1 GiB allocation and OutOfMemoryError","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6cx8-rjf8-pr8g","CVE-2026-106453"],"plain_summary":"GitHub lists this reviewed advisory for at.yawk.lz4:lz4-java, org.lz4:lz4-java. 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-66b636efa38bbf2d2560bbaa11f9905d"],"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":"2026-10-07T16:17:49.000Z","value":"5.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-66b636efa38bbf2d2560bbaa11f9905d"}],"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-66b636efa38bbf2d2560bbaa11f9905d","url":"https://github.com/advisories/GHSA-6cx8-rjf8-pr8g","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6cx8-rjf8-pr8g","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:46.232Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-66b636efa38bbf2d2560bbaa11f9905d"],"technology":"at.yawk.lz4:lz4-java","known_exclusions":[],"conditions_summary":"### Summary\n\n`LZ4DecompressorWithLength.decompress(byte[], int)` allocates whatever size the 4-byte length header declares, before it reads a single byte of compressed data. A 5-byte input whose header says `0x40000000` makes the JVM commit a gigabyte and can cause heap exhaustion.\n\n### Details\n\n`net.jpountz.lz4.LZ4DecompressorWithLength` reads the header and passes it straight on:\n\n```java\nfinal int destLen = getDecompressedLength(src, srcOff);\nreturn fastDecompressor.decompress(src, srcOff + 4, destLen);\n```\n\nand `net.jpountz.lz4.LZ4FastDecompressor` allocates it:\n\n```java\npublic final byte[] decompress(byte[] src, int srcOff, int destLen) {\n  final byte[] decompressed = new byte[destLen];\n  decompress(src, srcOff, decompressed, 0, destLen);\n  return decompressed;\n}\n```\n\n`getDecompressedLength` performs no validation: no comparison against `src.length`, no ceiling, no rejection of negatives. `LZ4SafeDecompressor.decompress(byte[], int, int, int)` has the same shape with `maxDestLen`.\n\nThe sibling overload that callers pass their own buffer to, `decompress(src, srcOff, dest, destOff, destLen)`, is fine, because there `destLen` is chosen by the caller rather than by the input. The ","public_affected_ranges":["<= 1.11.1"]},{"certainty":"source_listed","source_ids":["sr-66b636efa38bbf2d2560bbaa11f9905d"],"technology":"org.lz4:lz4-java","known_exclusions":[],"conditions_summary":"### Summary\n\n`LZ4DecompressorWithLength.decompress(byte[], int)` allocates whatever size the 4-byte length header declares, before it reads a single byte of compressed data. A 5-byte input whose header says `0x40000000` makes the JVM commit a gigabyte and can cause heap exhaustion.\n\n### Details\n\n`net.jpountz.lz4.LZ4DecompressorWithLength` reads the header and passes it straight on:\n\n```java\nfinal int destLen = getDecompressedLength(src, srcOff);\nreturn fastDecompressor.decompress(src, srcOff + 4, destLen);\n```\n\nand `net.jpountz.lz4.LZ4FastDecompressor` allocates it:\n\n```java\npublic final byte[] decompress(byte[] src, int srcOff, int destLen) {\n  final byte[] decompressed = new byte[destLen];\n  decompress(src, srcOff, decompressed, 0, destLen);\n  return decompressed;\n}\n```\n\n`getDecompressedLength` performs no validation: no comparison against `src.length`, no ceiling, no rejection of negatives. `LZ4SafeDecompressor.decompress(byte[], int, int, int)` has the same shape with `maxDestLen`.\n\nThe sibling overload that callers pass their own buffer to, `decompress(src, srcOff, dest, destOff, destLen)`, is fine, because there `destLen` is chosen by the caller rather than by the input. The ","public_affected_ranges":["<= 1.8.1"]}],"null_published_at":"2026-11-01T01:03:56.616Z","source_updated_at":"2026-10-07T16:17:49.000Z","source_disclosed_at":"2026-10-07T16:17:47.000Z","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":"2026-11-01T00:58:46.232Z"}],"next_cursor":null,"snapshot_revision":"42594"}