CVE-2026-13576EUVD-2026-113913GHSA-6V4F-GP6F-2GVJ
CallBackery versions before 0.62.0 for Perl store user passwords as unsalted HMAC-SHA1 hashes
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 0.62.0
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
CallBackery for Perl, before version 0.62.0, stores user passwords as unsalted SHA-1 HMAC hashes with no work factor. If an attacker gets the user database, they can quickly guess and recover the original passwords offline.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
CallBackery 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.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- CallBackery
fixed in 0.62.0