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1 vulnerability by HappySeaFox

CVE-2026-27168 (GCVE-0-2026-27168)

Vulnerability from cvelistv5 – Published: 2026-02-20 23:34 – Updated: 2026-02-20 23:34
VLAI?
Title
SAIL: Heap-based Buffer Overflow in Sail-codecs-xwd
Summary
SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. All versions are vulnerable to Heap-based Buffer Overflow through the XWD parser's use of the bytes_per_line value. The value os read directly from the file as the read size in io->strict_read(), and is never compared to the actual size of the destination buffer. An attacker can provide an XWD file with an arbitrarily large bytes_per_line, causing a massive write operation beyond the buffer heap allocated for the image pixels. The issue did not have a fix at the time of publication.
Severity ?
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
HappySeaFox sail Affected: <= 0.9.10
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "sail",
          "vendor": "HappySeaFox",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 0.9.10"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. All versions are vulnerable to Heap-based Buffer Overflow through the XWD parser\u0027s use of the bytes_per_line value. The value os read directly from the file as the read size in io-\u003estrict_read(), and is never compared to the actual size of the destination buffer. An attacker can provide an XWD file with an arbitrarily large bytes_per_line, causing a massive write operation beyond the buffer heap allocated for the image pixels. The issue did not have a fix at the time of publication."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122: Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-20T23:34:54.580Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/HappySeaFox/sail/security/advisories/GHSA-3g38-x2pj-mv55",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/HappySeaFox/sail/security/advisories/GHSA-3g38-x2pj-mv55"
        }
      ],
      "source": {
        "advisory": "GHSA-3g38-x2pj-mv55",
        "discovery": "UNKNOWN"
      },
      "title": "SAIL: Heap-based Buffer Overflow in Sail-codecs-xwd"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-27168",
    "datePublished": "2026-02-20T23:34:54.580Z",
    "dateReserved": "2026-02-18T00:18:53.963Z",
    "dateUpdated": "2026-02-20T23:34:54.580Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}