CVE-2026-88386: libsndfile version 1.2.2 contains a
Affects libsndfileSource CVE Database V5
Not known to be exploited · CVSS 5.5 Medium.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 24 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHublibsndfile/libsndfilepkg:github/libsndfile/libsndfileOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, users should exercise caution when processing untrusted WAV files with libsndfile version 1.2.2 to avoid triggering the vulnerability.
Description
libsndfile version 1.2.2 contains a vulnerability in the psf_binheader_readf() function related to misaligned memory access when parsing WAV format chunks. This flaw can cause undefined behavior due to an unaligned 4-byte store, potentially leading to a denial of service. The vulnerability requires user interaction to trigger and has a medium severity rating with a CVSS score of 5.5. No patch or fix information is currently available.