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DEBIAN-CVE-2026-40492

Type: advisorySource: OSV1 source record

SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. Prior to commit 36aa5c7ec8a2bb35f6fb867a1177a6f141156b02, the XWD codec resolves pixel format based on `pixmap_depth` but the byte-swap code uses `bits_per_pixel` independently. When `pixmap_depth=8` (BPP8_INDEXED, 1 byte/pixel buffer) but `bits_per_pixel=32`, the byte-swap loop accesses memory as `uint32_t*`, reading/writing 4x the allocated buffer size. This is a different vulnerability from the previously reported GHSA-3g38-x2pj-mv55 (CVE-2026-27168), which addressed `bytes_per_line` validation. Commit 36aa5c7ec8a2bb35f6fb867a1177a6f141156b02 contains a patch.

Announced Group revision 1
Original source ↗

DEBIAN-CVE-2026-40492

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-40492

sail

Source reference: /affected/0/package/name

Affected versions
0.9.10-1

Source reference: /affected/0/versions

0.9.10-2

Source reference: /affected/0/versions

0.9.10-3

Source reference: /affected/0/versions

0.9.8-1

Source reference: /affected/0/versions

0.9.8-1+deb13u1

Source reference: /affected/0/versions

0.9.9-1

Source reference: /affected/0/versions

1.2.0-1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

sail

Source reference: /affected/1/package/name

Affected versions
0.9.10-1

Source reference: /affected/1/versions

0.9.8-1

Source reference: /affected/1/versions

0.9.9-1

Source reference: /affected/1/versions

Fixed versions
0.9.10-2

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "sail",
      "purl": "pkg:deb/debian/sail?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "0.9.10-1",
      "0.9.10-2",
      "0.9.10-3",
      "0.9.8-1",
      "0.9.8-1+deb13u1",
      "0.9.9-1",
      "1.2.0-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40492.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.9.10-2"
          }
        ]
      }
    ],
    "package": {
      "name": "sail",
      "purl": "pkg:deb/debian/sail?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "0.9.10-1",
      "0.9.8-1",
      "0.9.9-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40492.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56092 · Revision 1
Added to Heist Feed
Publisher date
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