CallBackery versions before 0.62.0 for Perl store user passwords as unsalted HMAC-SHA1 hashes

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-13576
StatePUBLISHED
AssignerCPANSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-30 13:18:32 UTC
Updated2026-10-30 17:08:54 UTC
DescriptionCallBackery versions before 0.62.0 for Perl store user passwords as unsalted HMAC-SHA1 hashes. Passwords are hashed with hmac_sha1_sum() from Mojo::Util with no key, a single fast SHA-1 HMAC. There is no salt, so equal passwords give equal hashes, and no work factor slows down guessing. An attacker who obtains the user table can recover passwords by fast offline guessing.

Risk And Classification

EPSS: 0.001040000 probability, percentile 0.010210000 (date 2026-11-01)

Problem Types: CWE-759 | CWE-916 | CWE-916 CWE-916 Use of Password Hash With Insufficient Computational Effort | CWE-759 CWE-759 Use of a One-Way Hash without a Salt

References

ReferenceSourceLinkTags
metacpan.org/release/OETIKER/CallBackery-0.62.0/changes 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: Upgrade to CallBackery 0.62.0 or later.

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