CPANSA-CallBackery-2026-118991: CallBackery vulnerability
| Publisher | giterlizzi | Document category | csaf_security_advisory |
|---|---|---|---|
| Initial release date | 2026-10-30T00:00:00 | Engine | CSAF Perl Toolkit 0.26 |
| Current release date | 2026-10-30T00:00:00 | Build Date | |
| Current version | 1 | Status | final |
| CVSS v3.1 Base Score | Severity | ||
| Original language | Language | en | |
| Also referred to | |||
Vulnerability 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.
Vulnerabilities
CVE-2026-118991
Vulnerability DescriptionCallBackery 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.
| Weakness | CWE-916 : Use of Password Hash With Insufficient Computational Effort |
|---|
Product status
Known affected
| Product | Score | ||||
|---|---|---|---|---|---|
| CallBackery less than 0.62.0 |
|
Fixed
- CallBackery greater than or equal 0.62.0
giterlizzi
Namespace: https://github.com/giterlizzi/
gdt@cpan.org
References
- CPANSA-CallBackery-2026-118991 JSON self
https://raw.githubusercontent.com/giterlizzi/perl-CPANSA-CSAF/develop/csaf/white/2026/cpansa-callbackery-2026-118991.json - https://metacpan.org/release/OETIKER/CallBackery-0.62.0/changes external
https://metacpan.org/release/OETIKER/CallBackery-0.62.0/changes - CVE-2026-118991 (NVD) external
https://nvd.nist.gov/vuln/detail/CVE-2026-118991
Revision history
| Version | Date of the revision | Summary of the revision |
|---|---|---|
| 1 | Fri Oct 30 00:00:00 2026 | First release |
Sharing rules
TLP:WHITE
For the TLP version see: https://www.first.org/tlp/