CVE-2026-5316 Nothings stb stb_vorbis.c setup_free allocation of resources

What is CVE-2026-5316?

CVE-2026-5316 is a medium-severity denial of service vulnerability in Nothings stb, published on 2 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A vulnerability was identified in Nothings stb up to 1.22. The impacted element is the function setup_free of the file stb_vorbis.c. The manipulation leads to allocation of resources. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-770, CWE-400

Which versions are affected by CVE-2026-5316?

It affects 1 product.

Products include Nothings Stb Vorbis.c.

How do I fix CVE-2026-5316?

No fix has been published for CVE-2026-5316 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-5316 being exploited?

There is no known exploitation of CVE-2026-5316 in the wild and no public exploit code.

Other vulnerabilities in Nothings stb

• CVE-2023-45676 Multi-byte write heap buffer overflow in start_decoder in stb_vorbis High 7.3
• CVE-2023-45677 Heap buffer out of bounds write in start_decoder in stb_vorbis High 7.3
• CVE-2023-45679 Attempt to free an uninitialized memory pointer in vorbis_deinit in stb_vorbis High 7.3
• CVE-2023-45681 Out of bounds heap buffer write in stb_vorbis High 7.3
• CVE-2023-45675 0 byte write heap buffer overflow in start_decoder in stb_vorbis Medium 6.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-5316, GHSA-pmw2-j962-7frc, UBUNTU-CVE-2026-5316.