CVE-2026-5086: Crypt::SecretBuffer versions before 0.019 for Perl is suseceptible to timing attacks

Severity: high (CVSS 7.5 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: 2026-04-13 · updated 2026-10-26
Weakness: CWE-208

Description

Crypt::SecretBuffer versions before 0.019 for Perl is suseceptible to timing attacks. For example, if Crypt::SecretBuffer was used to store and compare plaintext passwords, then discrepencies in timing could be used to guess the secret password.

Affected products

NERDVANA Crypt::Secretbuffer: before 0.019 — fixed in 0.019

How to fix

Upgrade to a fixed version: NERDVANA Crypt::Secretbuffer 0.019. Check the vendor advisory for mitigations.

References

https://metacpan.org/release/NERDVANA/Crypt-SecretBuffer-0.019/source/Changes
http://www.openwall.com/lists/oss-security/2026/04/13/12

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