{"id":"CVE-2026-54627","state":"PUBLISHED","title":"SAIL: Heap out-of-bounds write in SAIL PSD decoder (Bitmap mode ignores depth)","description":"SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. In 0.9.10 and earlier, psd_private_sail_pixel_format() in src/sail-codecs/psd/helpers.c resolves a one-channel PSD in Bitmap color mode to SAIL_PIXEL_FORMAT_BPP1_INDEXED without requiring the file depth to be one, so the pixel buffer uses one-bit rows while sail_codec_load_frame_v8_psd() in src/sail-codecs/psd/psd.c accepts depth == 8 and writes one attacker-controlled byte per pixel. Loading a crafted PSD through sail_load_from_file() or sail_load_from_memory() therefore writes beyond each heap row, causing memory corruption, a reliable crash, or potential code execution. This mode/depth mismatch is distinct from GHSA-rcqx-gc76-r9mv and GHSA-wcj8-hxxf-pq2c. This issue is fixed in version 1.0.0.","publishedAt":"2026-09-17T19:47:14.090Z","updatedAt":"2026-09-18T20:10:15.233Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["HappySeaFox sail"],"affected":[{"vendor":"HappySeaFox","product":"sail","versions":[{"version":"< 1.0.0","status":"affected"}]}],"references":["https://github.com/HappySeaFox/sail/security/advisories/GHSA-ccqf-rv86-h3wm","https://github.com/HappySeaFox/sail/commit/f44a8b779a1fc527fc6bc5caa71a66a8ed940d50","https://github.com/HappySeaFox/sail/releases/tag/v1.0.0"],"weaknesses":["CWE-122","CWE-787"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54627.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54627","state":"PUBLISHED","datePublished":"2026-09-17T19:47:14.090Z","dateUpdated":"2026-09-18T20:10:15.233Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-15T20:07:02.185Z"},"containers":{"cna":{"title":"SAIL: Heap out-of-bounds write in SAIL PSD decoder (Bitmap mode ignores depth)","descriptions":[{"lang":"en","value":"SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. In 0.9.10 and earlier, psd_private_sail_pixel_format() in src/sail-codecs/psd/helpers.c resolves a one-channel PSD in Bitmap color mode to SAIL_PIXEL_FORMAT_BPP1_INDEXED without requiring the file depth to be one, so the pixel buffer uses one-bit rows while sail_codec_load_frame_v8_psd() in src/sail-codecs/psd/psd.c accepts depth == 8 and writes one attacker-controlled byte per pixel. Loading a crafted PSD through sail_load_from_file() or sail_load_from_memory() therefore writes beyond each heap row, causing memory corruption, a reliable crash, or potential code execution. This mode/depth mismatch is distinct from GHSA-rcqx-gc76-r9mv and GHSA-wcj8-hxxf-pq2c. This issue is fixed in version 1.0.0."}],"affected":[{"vendor":"HappySeaFox","product":"sail","versions":[{"version":"< 1.0.0","status":"affected"}]}],"references":[{"url":"https://github.com/HappySeaFox/sail/security/advisories/GHSA-ccqf-rv86-h3wm","name":"https://github.com/HappySeaFox/sail/security/advisories/GHSA-ccqf-rv86-h3wm","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/HappySeaFox/sail/commit/f44a8b779a1fc527fc6bc5caa71a66a8ed940d50","name":"https://github.com/HappySeaFox/sail/commit/f44a8b779a1fc527fc6bc5caa71a66a8ed940d50","tags":["x_refsource_MISC"]},{"url":"https://github.com/HappySeaFox/sail/releases/tag/v1.0.0","name":"https://github.com/HappySeaFox/sail/releases/tag/v1.0.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-122","lang":"en","description":"CWE-122: Heap-based Buffer Overflow","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-787","lang":"en","description":"CWE-787: Out-of-bounds Write","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-17T19:47:14.090Z"},"source":{"advisory":"GHSA-ccqf-rv86-h3wm","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/HappySeaFox/sail/security/advisories/GHSA-ccqf-rv86-h3wm","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-18T20:09:52.440545Z","id":"CVE-2026-54627","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-18T20:10:15.233Z"}}]}}}