Medium 6.9Published Sep 3, 2026

CVE-2026-85062Colord: Slow rejection of oversized malformed color strings

Updated under an hour ago (2026-10-19 08:30 UTC)

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It affects omgovich colord. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for omgovich colord

Exploited in the last 30 days

Colord is a tiny yet powerful tool for high-performance color manipulations and conversions. Prior to 2.9.4, synchronous CSS color string matchers in src/colorModels/rgbString.ts, src/colorModels/hslString.ts, src/colorModels/hwbString.ts, src/colorModels/lchString.ts, and src/colorModels/cmykString.ts use the ambiguous numeric regular expression ([+-]?\d*.?\d+), allowing the same digits to be divided between overlapping quantifiers in quadratically many ways when malformed input is rejected. An attacker who can supply an unbounded color string to colord(), getFormat(), isEqual(), mix(), or contrast(), including through a request body, JSON field, or uploaded stylesheet, can block the processing thread with a multi-kilobyte payload. The affected matchers are parseRgbaString, parseHslaString, parseHwbaString, parseLchaString, and parseCmykaString. This issue is fixed in version 2.9.4.

CVSS: 6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness (CWE): CWE-1333
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Sep 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

omgovich colord omgovich:colord (from the name)	before 2.9.4	CNA record

References

https://github.com/omgovich/colord/security/advisories/GHSA-2wm5-q62r-hmrvx-refsource-confirm
https://github.com/omgovich/colord/pull/141x-refsource-misc
https://github.com/omgovich/colord/commit/87018089515ed66a85b1a95c3c7c3fd69a25bac2x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.