CVE-2025-15535: nicbarker clay clay.h Clay__MeasureTextCached null pointer dereference

Severity: low (CVSS 3.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-18 · updated 2026-06-17
Weakness: CWE-404

Description

A security flaw has been discovered in nicbarker clay up to 0.14. This affects the function Clay__MeasureTextCached in the library clay.h. The manipulation results in null pointer dereference. The attack is only possible with local access. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

nicbarker clay: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+8)

References

https://github.com/nicbarker/clay/
https://github.com/nicbarker/clay/issues/566
https://github.com/oneafter/1215/blob/main/repro
https://vuldb.com/?ctiid.341707
https://vuldb.com/?id.341707
https://vuldb.com/?submit.733346

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