{"id":"CVE-2026-54060","state":"PUBLISHED","title":"Pillow: `FontFile.compile()`: `Image.new()` called without `_decompression_bomb_check()`","description":"Pillow is a Python imaging library. Prior to 12.3.0, PIL/FontFile.py FontFile.compile() assembled per-glyph images into a combined bitmap with Image.new(\"1\", (xsize, ysize)) without calling Image._decompression_bomb_check(), allowing a font to trigger excessive allocation during conversion or saving. This issue is fixed in version 12.3.0.","publishedAt":"2026-07-06T18:49:23.788Z","updatedAt":"2026-07-07T14:08:14.588Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["python-pillow Pillow"],"affected":[{"vendor":"python-pillow","product":"Pillow","versions":[{"version":"< 12.3.0","status":"affected"}]}],"references":["https://github.com/python-pillow/Pillow/security/advisories/GHSA-5x94-69rx-g8h2","https://github.com/python-pillow/Pillow/commit/0a263e6264aa5399988d9acd3bbfbca2ca3ec77d","https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst"],"weaknesses":["CWE-789"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54060.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54060","state":"PUBLISHED","datePublished":"2026-07-06T18:49:23.788Z","dateUpdated":"2026-07-07T14:08:14.588Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-11T18:24:35.096Z"},"containers":{"cna":{"title":"Pillow: `FontFile.compile()`: `Image.new()` called without `_decompression_bomb_check()`","descriptions":[{"lang":"en","value":"Pillow is a Python imaging library. Prior to 12.3.0, PIL/FontFile.py FontFile.compile() assembled per-glyph images into a combined bitmap with Image.new(\"1\", (xsize, ysize)) without calling Image._decompression_bomb_check(), allowing a font to trigger excessive allocation during conversion or saving. This issue is fixed in version 12.3.0."}],"affected":[{"vendor":"python-pillow","product":"Pillow","versions":[{"version":"< 12.3.0","status":"affected"}]}],"references":[{"url":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-5x94-69rx-g8h2","name":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-5x94-69rx-g8h2","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/python-pillow/Pillow/commit/0a263e6264aa5399988d9acd3bbfbca2ca3ec77d","name":"https://github.com/python-pillow/Pillow/commit/0a263e6264aa5399988d9acd3bbfbca2ca3ec77d","tags":["x_refsource_MISC"]},{"url":"https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst","name":"https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-789","lang":"en","description":"CWE-789: Memory Allocation with Excessive Size Value","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-07-06T18:49:23.788Z"},"source":{"advisory":"GHSA-5x94-69rx-g8h2","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-5x94-69rx-g8h2","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-07T14:07:46.646415Z","id":"CVE-2026-54060","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-07T14:08:14.588Z"}}]}}}