CVE Explorer
CVE-2026-59205
Pillow is a Python imaging library. Prior to 12.3.0, Pillow's ImageCms.ImageCmsTransform.apply(im, imOut) API can trigger controlled native heap corruption when the caller supplies an output image whose mode does not match the transform's declared output mode. This issue is fixed in version 12.3.0.
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":"< 12.3.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:b61ee819d2ae3aa562881530dc7931958b44483786eba2ba2a67c01ba64e986c · sha256:7ece846dd80b9283… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:b61ee819d2ae3aa562881530dc7931958b44483786eba2ba2a67c01ba64e986c · sha256:7ece846dd80b9283… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:b61ee819d2ae3aa562881530dc7931958b44483786eba2ba2a67c01ba64e986c · sha256:7ece846dd80b9283… · /containers/cna/problemTypes/0/descriptions/0
Source references
5 source assertions{"name":"https://github.com/python-pillow/Pillow/commit/a9ffc42bedf4fc0a7ef8d6486e7f9e81e3397721","tags":["x_refsource_MISC"],"url":"https://github.com/python-pillow/Pillow/commit/a9ffc42bedf4fc0a7ef8d6486e7f9e81e3397721"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b61ee819d2ae3aa562881530dc7931958b44483786eba2ba2a67c01ba64e986c · sha256:7ece846dd80b9283… · /containers/cna/references/2
{"name":"https://github.com/python-pillow/Pillow/pull/9715","tags":["x_refsource_MISC"],"url":"https://github.com/python-pillow/Pillow/pull/9715"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b61ee819d2ae3aa562881530dc7931958b44483786eba2ba2a67c01ba64e986c · sha256:7ece846dd80b9283… · /containers/cna/references/1
{"name":"https://github.com/python-pillow/Pillow/releases/tag/12.3.0","tags":["x_refsource_MISC"],"url":"https://github.com/python-pillow/Pillow/releases/tag/12.3.0"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b61ee819d2ae3aa562881530dc7931958b44483786eba2ba2a67c01ba64e986c · sha256:7ece846dd80b9283… · /containers/cna/references/3
{"tags":["exploit"],"url":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b61ee819d2ae3aa562881530dc7931958b44483786eba2ba2a67c01ba64e986c · sha256:7ece846dd80b9283… · /containers/adp/0/references/0
{"name":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:b61ee819d2ae3aa562881530dc7931958b44483786eba2ba2a67c01ba64e986c · sha256:7ece846dd80b9283… · /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.