Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-42309

Pillow is a Python imaging library. From version 11.2.1 to before version 12.2.0, passing nested lists as coordinates to APIs that accept coordinates such as ImagePath.Path, ImageDraw.ImageDraw.polygon and ImageDraw.ImageDraw.line could cause a heap buffer overflow, as nested lists were recursively unpacked beyond the allocated buffer. Coordinate lists are now validated to contain exactly two numeric coordinates. This issue has been patched in version 12.2.0.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d2e6d37652cdfb4b0c585ac813f2ea1cf319096d4aa58c27bdadcc5e2b0c7f66
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"Pillow","vendor":"python-pillow","versions":[{"status":"affected","version":">= 11.2.1, < 12.2.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5b0f27bc9a818b607d845e53c45eac6c6286dc8f55a2287898ace612a8f059d2 · sha256:1cb6d282915b7ac0… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5b0f27bc9a818b607d845e53c45eac6c6286dc8f55a2287898ace612a8f059d2 · sha256:1cb6d282915b7ac0… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:5b0f27bc9a818b607d845e53c45eac6c6286dc8f55a2287898ace612a8f059d2 · sha256:1cb6d282915b7ac0… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/python-pillow/Pillow/releases/tag/12.2.0","tags":["x_refsource_MISC"],"url":"https://github.com/python-pillow/Pillow/releases/tag/12.2.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5b0f27bc9a818b607d845e53c45eac6c6286dc8f55a2287898ace612a8f059d2 · sha256:1cb6d282915b7ac0… · /containers/cna/references/1
{"name":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-5xmw-vc9v-4wf2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-5xmw-vc9v-4wf2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5b0f27bc9a818b607d845e53c45eac6c6286dc8f55a2287898ace612a8f059d2 · sha256:1cb6d282915b7ac0… · /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.

← Back to CVE Explorer