omgovich Colord up to 2.9.3 CSS Color String Matchers rgbString.ts parseRgbaString resource consumption

Summaryinfo

A vulnerability marked as problematic has been reported in omgovich Colord up to 2.9.3. This impacts the function parseRgbaString of the file src/colorModels/rgbString.ts of the component CSS Color String Matchers. This manipulation causes resource consumption. This vulnerability is registered as CVE-2026-85062. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability has been found in omgovich Colord up to 2.9.3 and classified as problematic. Affected by this vulnerability is the function parseRgbaString of the file src/colorModels/rgbString.ts of the component CSS Color String Matchers. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-85062 since 09/02/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 2.9.4 eliminates this vulnerability.

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Productinfo

Vendor

• omgovich

Name

• Colord

Version

• 2.9.0
• 2.9.1
• 2.9.2
• 2.9.3

Website

• Product: https://github.com/omgovich/colord/

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