What’s Vulnerable › Vulnerabilities

CVE-2024-14031: Sereal::Encoder versions from 4.000 through 4.009_002 for Perl embeds a vulnerable version of the Zstandard library

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-03-31 · updated 2026-07-25
• Weakness: CWE-787

Description

Sereal::Encoder versions from 4.000 through 4.009_002 for Perl embeds a vulnerable version of the Zstandard library. Sereal::Encoder embeds a version of the Zstandard (zstd) library that is vulnerable to CVE-2019-11922. This is a race condition in the one-pass compression functions of Zstandard prior to version 1.3.8 could allow an attacker to write bytes out of bounds if an output buffer smaller than the recommended size was used.

Affected products

• YVES Sereal::Encoder: from 4.000 before 4.010 — fixed in 4.010

How to fix

Upgrade to a fixed version: YVES Sereal::Encoder 4.010. Check the vendor advisory for mitigations.

References

• https://github.com/advisories/GHSA-w77f-wv46-4vcx
• https://metacpan.org/release/YVES/Sereal-Encoder-4.010/changes
• https://www.cve.org/CVERecord?id=CVE-2019-11922

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