CVE-2026-5315: Nothings stb TTF File stb_truetype.h stbtt__buf_get8 out-of-bounds

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-04-02 · updated 2026-10-26
Weakness: CWE-119

Description

A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

nothings Stb Truetype.H: through 1.26

References

https://gist.github.com/d0razi/c11dd07c75f3b795e4f8bbfd6e2f0d29
https://vuldb.com/submit/780559
https://vuldb.com/vuln/354647
https://vuldb.com/vuln/354647/cti

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