CVE-2026-110601 (GCVE-0-2026-110601)

Vulnerability from cvelistv5 – Published: 2026-10-14 14:16 – Updated: 2026-10-14 14:16
VLAI
Title
libsixel before 1.8.7-r1 and 1.9.0 through 1.10.5 Heap Out-of-Bounds Write via GIF
Summary
libsixel before 1.8.7-r1 and 1.9.0 through 1.10.5 contains a heap out-of-bounds write vulnerability in gif_init_frame() in src/fromgif.c, which never checks the GIF transparent color index against the palette size. Attackers can supply a crafted GIF with a small color table and large transparent index, processed with a background color set, to write bytes past the palette buffer, causing heap corruption or crashes.
Severity
5.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
6.3 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
CWE
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6057 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
saitoha libsixel Affected: 0 , < 1.8.7-r1 (custom)
Affected: 1.9.0 , ≤ 1.10.5 (custom)
    cpe:2.3:a:saitoha:libsixel:*:*:*:*:*:*:*:*
    cpe:2.3:a:saitoha:libsixel:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-03-04 00:00
Credits
ShangzhiXu HaiND from the Post and Telecommunication Institute of Technology
Show details on NVD website
To clipboard 

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        }
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          "url": "https://github.com/saitoha/libsixel/issues/220"
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          "url": "https://github.com/saitoha/libsixel/commit/bdbab09816eb9188429c37a50b97c5e66dfe5047"
        },
        {
          "name": "libsixel v1.8.7-r1 Release Notes",
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          "url": "https://github.com/saitoha/libsixel/blob/v1.8.7/src/fromgif.c#L182-L248"
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-110601",
    "datePublished": "2026-10-14T14:16:43.022Z",
    "dateReserved": "2026-10-14T13:07:20.557Z",
    "dateUpdated": "2026-10-14T14:16:43.022Z",
    "state": "PUBLISHED"
  },
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          }
        ],
        "id": "CVE-2026-110601",
        "lastModified": "2026-10-14T15:17:11.530",
        "metrics": {
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                "integrityRequirement": "NOT_DEFINED",
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                "modifiedAttackRequirements": "NOT_DEFINED",
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}



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