CVE Explorer
CVE-2026-50219
libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_GetBuffer, XML_Parse, XML_ParseBuffer, XML_ParserFree, or XML_ParserReset from within handlers in cases of a policy violation. Thus, a use-after-free can occur,
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"libexpat","vendor":"libexpat project","versions":[{"lessThan":"2.8.2","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:6b036775a08c58395510fb3c2caf6dcd3ad5c91a7745e533bdd860a82d7a7284 · sha256:b4cb22fcdba4c4ff… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":4.9,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:6b036775a08c58395510fb3c2caf6dcd3ad5c91a7745e533bdd860a82d7a7284 · sha256:b4cb22fcdba4c4ff… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-416","description":"CWE-416 Use After Free","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:6b036775a08c58395510fb3c2caf6dcd3ad5c91a7745e533bdd860a82d7a7284 · sha256:b4cb22fcdba4c4ff… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://github.com/libexpat/libexpat/pull/1246"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6b036775a08c58395510fb3c2caf6dcd3ad5c91a7745e533bdd860a82d7a7284 · sha256:b4cb22fcdba4c4ff… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.