{"items":[{"id":"NVI-00017468","kind":"vulnerability","title":"Apache Tomcat is vulnerable to resource exhaustion when using the APR/Native connector","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4j3c-42xv-3f84","CVE-2025-52434"],"plain_summary":"GitHub lists this reviewed advisory for org.apache.tomcat:tomcat-coyote, org.apache.tomcat:tomcat-coyote, org.apache.tomcat.embed:tomcat-embed-core, org.apache.tomcat.embed:tomcat-embed-core. 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-03f852c0fba3ba9a8cedb5ad2aae9227"],"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":"2026-07-01T16:16:53.000Z","value":"7.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-03f852c0fba3ba9a8cedb5ad2aae9227"}],"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-03f852c0fba3ba9a8cedb5ad2aae9227","url":"https://github.com/advisories/GHSA-4j3c-42xv-3f84","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-4j3c-42xv-3f84","publisher":"GitHub Advisory Database","observed_at":"2026-11-05T11:39:31.286Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-03f852c0fba3ba9a8cedb5ad2aae9227"],"technology":"org.apache.tomcat:tomcat-coyote","known_exclusions":[],"conditions_summary":"Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client initiated closes of HTTP/2 connections.\n\nThis issue affects Apache Tomcat: from 9.0.0.M1 through 9.0.106.  The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected.\n\nUsers are recommended to upgrade to version 9.0.107, which fixes the issue.","public_affected_ranges":[">= 9.0.0.M1, < 9.0.107"]},{"certainty":"source_listed","source_ids":["sr-03f852c0fba3ba9a8cedb5ad2aae9227"],"technology":"org.apache.tomcat:tomcat-coyote","known_exclusions":[],"conditions_summary":"Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client initiated closes of HTTP/2 connections.\n\nThis issue affects Apache Tomcat: from 9.0.0.M1 through 9.0.106.  The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected.\n\nUsers are recommended to upgrade to version 9.0.107, which fixes the issue.","public_affected_ranges":[">= 8.5.0, <= 8.5.100"]},{"certainty":"source_listed","source_ids":["sr-03f852c0fba3ba9a8cedb5ad2aae9227"],"technology":"org.apache.tomcat.embed:tomcat-embed-core","known_exclusions":[],"conditions_summary":"Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client initiated closes of HTTP/2 connections.\n\nThis issue affects Apache Tomcat: from 9.0.0.M1 through 9.0.106.  The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected.\n\nUsers are recommended to upgrade to version 9.0.107, which fixes the issue.","public_affected_ranges":[">= 9.0.0.M1, < 9.0.107"]},{"certainty":"source_listed","source_ids":["sr-03f852c0fba3ba9a8cedb5ad2aae9227"],"technology":"org.apache.tomcat.embed:tomcat-embed-core","known_exclusions":[],"conditions_summary":"Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client initiated closes of HTTP/2 connections.\n\nThis issue affects Apache Tomcat: from 9.0.0.M1 through 9.0.106.  The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected.\n\nUsers are recommended to upgrade to version 9.0.107, which fixes the issue.","public_affected_ranges":[">= 8.5.0, <= 8.5.100"]}],"null_published_at":"2026-11-05T19:10:21.392Z","source_updated_at":"2026-07-01T16:16:53.000Z","source_disclosed_at":"2025-07-10T21:31:52.000Z","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":"2026-11-05T11:39:31.286Z"}],"next_cursor":null,"snapshot_revision":"42594"}