CVE-2026-118991

High

Description

CallBackery versions before 0.62.0 for Perl encrypt configuration backups with the padded password as the AES key. getCrypt() pads the backup password with "x" characters and cuts it to 32 bytes to form the AES key, with no salt and no key derivation. The first block of a backup holds a 16 hex digit length field, so decrypting one block confirms a password guess at raw AES speed. An attacker who obtains a backup can recover its password by fast offline guessing, and with it every credential the backup holds.

SeverityHigh

CVSS7.5

Exploit probability—

ProductCallbackery

PublishedOct 30, 2026

First seenNov 4, 2026

Weakness typeCWE-916CWE-916

How to fix

Update

CallBackery0.62.0 or later

Vendor advisories

metacpan.org/release/OETIKER/CallBackery-0.62.0/changes

Affected products

Product	Affected versions	Fixed in
CallBackery	v < 0.62.0	0.62.0

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