CVE catalog
CVE-2026-9638
Crypt::PBKDF2 versions before 0.261630 for Perl generate insecure random values for salts. These versions use the built-in rand function, which is predictable and unsuitable for cryptography.
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.30% · Oct 25, 2026
Crypt::PBKDF2 versions before 0.261630 for Perl generate insecure random values for salts. These versions use the built-in rand function, which is predictable and unsuitable for cryptography.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libcrypt-pbkdf2-perl | sid | 0.261630-1 | fixed |
| Debian | libcrypt-pbkdf2-perl | forky | 0.261630-1 | fixed |
| Debian | libcrypt-pbkdf2-perl | trixie | 0.261630-1~deb13u1 | fixed |
| Debian | libcrypt-pbkdf2-perl | bookworm | 0.261630-1~deb13u1~deb12u1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libcrypt-pbkdf2-perl | source | sid | 0.261630-1 | not yet assigned | Not reported | [1139867] |
| Debian | libcrypt-pbkdf2-perl | source | forky | 0.261630-1 | not yet assigned | Not reported | [1139867] |
| Debian | libcrypt-pbkdf2-perl | source | trixie | 0.261630-1~deb13u1 | not yet assigned | Not reported | [1139867] |
| Debian | libcrypt-pbkdf2-perl | source | bookworm | 0.261630-1~deb13u1~deb12u1 | not yet assigned | Not reported | [1139867] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libcrypt-pbkdf2-perl]Fixed
Details (2)
0.261630-1~deb13u1~deb12u1· all · bookwormFixed · Fixed:
0.261630-1~deb13u1~deb12u1nvd · libcrypt-pbkdf2-perl · debian · bookworm; nvd · libcrypt-pbkdf2-perl · debian · 12
0.261630-1~deb13u1~deb12u1· all · bookwormFixed · Fixed:
0.261630-1~deb13u1~deb12u1nvd · libcrypt-pbkdf2-perl · debian · bookworm; nvd · libcrypt-pbkdf2-perl · debian · 12
[Debian 13 (Trixie)]
- [libcrypt-pbkdf2-perl]Fixed
Details (2)
0.261630-1~deb13u1· all · trixieFixed · Fixed:
0.261630-1~deb13u1nvd · libcrypt-pbkdf2-perl · debian · 13
0.261630-1~deb13u1· all · trixieFixed · Fixed:
0.261630-1~deb13u1nvd · libcrypt-pbkdf2-perl · debian · 13
Observed:
References
- [http://www.openwall.com/lists/oss-security/2026/06/12/4]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11034-1.json]
- [https://metacpan.org/dist/Crypt-PBKDF2/source/lib/Crypt/PBKDF2.pm#L86-93]
- [https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-9638]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-9638]
- [https://security-tracker.debian.org/tracker/CVE-2026-9638]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9638.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]