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CVE-2026-115506

8.7 high SSVC exploitation: poc Published
NVD · CVE.org

libexpat through 2.9.0 contains a denial of service vulnerability because billion laughs protection in accountingDiffTolerated() in xmlparse.c detects entity amplification too late. Attackers can supply a moderately sized XML document with a large DTD and nested entity expansions to consume tens of seconds of CPU per parse.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 4

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-23 21:06
  2. StatusPublished → Awaiting AnalysisNVD modified 2026-10-23 19:45
  3. StatusReceived → PublishedNVD modified 2026-10-22 19:14
  4. First seenCVSS 8.7NVD modified 2026-10-22 20:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 5