CVE-2026-54692

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Source
https://cve.org/CVERecord?id=CVE-2026-54692
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54692.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-54692
Aliases
  • GHSA-gp27-qv2x-55v5
Downstream
CGA (4)
DEBIAN (1)
UBUNTU (1)
Published
2026-09-17T19:47:57Z
Modified
2026-10-28T11:14:42Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
SAIL: XBM X10 decoder writes 2 bytes per literal into a 1-byte-per-literal buffer (heap out-of-bounds write)
Details

SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. Prior to 1.0.0, sail_codec_load_frame_v8_xbm() in src/sail-codecs/xbm/xbm.c allocates the decoded pixel buffer using the X11 one-byte-per-literal layout, but an X10 static short file causes the flat decode loop to write two file-controlled bytes per literal. When ceil(width/8) produces an odd row stride, the X10 literal count includes a padding byte for every row, but the destination has no space for those bytes, so loading the XBM through sail_load_from_file, sail_load_from_memory, or sail_start_loading_* produces a forward heap overwrite that scales with image height. The X11 static char path is not affected. The overwrite can corrupt process state, cause reliable crashes, and potentially enable code execution in a susceptible consuming application. This issue is fixed in version 1.0.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-131",
        "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54692.json"
}
References

Affected packages

Git / github.com/happyseafox/sail

Affected ranges

Type
GIT
Repo
https://github.com/happyseafox/sail
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0f969168b9d19d43f448d2237990ec247ba822ca
Fixed
2991e18f806cf038038ee1ef9b08aa5d57480de1
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.0.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "2991e18f806cf038038ee1ef9b08aa5d57480de1"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v1.0.0",
            "range": [
                {
                    "fixed": "0f969168b9d19d43f448d2237990ec247ba822ca"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

v0.*
v0.9.0
v0.9.0-pre1
v0.9.0-pre10
v0.9.0-pre11
v0.9.0-pre12
v0.9.0-pre13
v0.9.0-pre14
v0.9.0-pre15
v0.9.0-pre16
v0.9.0-pre17
v0.9.0-pre18
v0.9.0-pre19
v0.9.0-pre2
v0.9.0-pre20
v0.9.0-pre21
v0.9.0-pre22
v0.9.0-pre23
v0.9.0-pre3
v0.9.0-pre4
v0.9.0-pre5
v0.9.0-pre6
v0.9.0-pre7
v0.9.0-pre8
v0.9.0-pre9
v0.9.0-rc1
v0.9.0-rc2
v0.9.0-rc3
v0.9.1
v0.9.10
v0.9.2
v0.9.3
v0.9.4
v0.9.5
v0.9.6
v0.9.7
v0.9.8
v0.9.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54692.json"
vanir_signatures 
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vanir_signatures_modified 
"2026-10-28T11:14:42Z"