Speex (libspeex) through 1.2.1 contains an out-of-bounds write vulnerability in speex_bits_read_whole_bytes() in libspeex/bits.c that mis…
CVE-2026-116741 · GHSA-jmfj-jxhf-c4c3 · EUVD-2026-110489 · published 26 Oct 2026
How serious is it
- Severity: high, CVSS score 8.3 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-116741?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- xiph speex: 0 ≤1.2.1
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
Speex (libspeex) through 1.2.1 contains an out-of-bounds write vulnerability in speex_bits_read_whole_bytes() in libspeex/bits.c that mishandles length truncation for non-owned SpeexBits buffers. Attackers can stream crafted Speex data into buffers set up with speex_bits_init_buffer() or speex_bits_set_bit_buffer() to corrupt heap or stack memory and crash applications.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- github.com/xiph/speex/issues/42
- github.com/xiph/speex
- github.com/xiph/speex/blob/Speex-1.2.1/libspeex/bits.c#L177
- hackmd.io/@haindpwn/speex-bits-read-whole-bytes-oob-write
- gitlab.xiph.org/xiph/speex/-/merge_requests/32
- www.vulncheck.com/advisories/speex-through-1.2.1-out-of-bounds-write-via-speex-bits-read-whole-bytes
Merged from ENISA EUVD. Last updated 27 Oct 2026. All vulnerabilities · RSS · JSON