CVE-2026-106115
highImageSharp is a 2D graphics library.
Vendor / product: Sixlabors — imagesharp
ImageSharp is a 2D graphics library. From 2.1.0 until 4.1.2, the TIFF CCITT Group 4 encoder allocates Width times rowsPerStrip bytes even though T6BitCompressor.CompressStrip can emit encoded row data and two 12-bit end-of-facsimile-block codes beyond that capacity. TiffCcittCompressor.WriteCode performs unchecked writes, and a decode-and-re-encode flow can inherit TiffCompression.CcittGroup4Fax and one-bit metadata from attacker-supplied input. The resulting out-of-bounds writes can corrupt memory and terminate the process. This issue is fixed in version 4.1.2.
CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (security-advisories@github.com)
Timeline (UTC)
Published: 2026-10-06 18:16
Modified: 2026-10-24 01:27
NVD status: Analyzed
Last synced 3 days ago
Verified against the source API 2026-10-27 06:57 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
sixlabors / imagesharp ≥2.1.0 <3.2.0, ≥4.0.0 <4.1.2
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://github.com/SixLabors/ImageSharp/commit/a9498c6db3642ef92c712ebc81e706914ac16a95
Patch / mitigation: https://github.com/SixLabors/ImageSharp/pull/3187
References
- https://github.com/SixLabors/ImageSharp/commit/a9498c6db3642ef92c712ebc81e706914ac16a95 security-advisories@github.com
- https://github.com/SixLabors/ImageSharp/pull/3187 security-advisories@github.com
- https://github.com/SixLabors/ImageSharp/releases/tag/v4.1.2 security-advisories@github.com
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w security-advisories@github.com
- https://github.com/SixLabors/ImageSharp/security/advisories/GHSA-jjfr-hcj7-qf5w 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:57 UTC · record ↗