CVE-2026-37555 Affecting libsndfile package, versions <1.2.2-2+deb13u1+e1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.5% (41st percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBSNDFILE-20138048
  • published25 Sept 2026
  • disclosed29 Apr 2026

Introduced: 29 Apr 2026

CVE-2026-37555  (opens in a new tab)

How to fix?

Upgrade Echo:latest libsndfile to version 1.2.2-2+deb13u1+e1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsndfile package and not the libsndfile package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

An issue was discovered in libsndfile 1.2.2 IMA ADPCM codec. The AIFF code path (line 241) was fixed with (sf_count_t) cast, but the WAV code path (line 235) and close path (line 167) were not. When samplesperblock (int) * blocks (int) exceeds INT_MAX, the 32-bit multiplication overflows before being assigned to sf.frames (sf_count_t/int64). With samplesperblock=50000 and blocks=50000, the product 2500000000 overflows to -1794967296. This causes incorrect frame count leading to heap buffer overflow or denial of service. Both values come from the WAV file header and are attacker-controlled. This issue was discovered after an incomplete fix for CVE-2022-33065.

CVSS Base Scores

version 3.1