CVE catalog
CVE-2026-9641
Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations. The default algorithm is HMAC-SHA1, which should only be used for legacy systems. These versio
- 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
- 0.23% · Oct 25, 2026
Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations. The default algorithm is HMAC-SHA1, which should only be used for legacy systems. These versions default to using 1000 iterations. Depending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used.
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/2026/06/12/5]
- [http://www.openwall.com/lists/oss-security/2026/06/13/1]
- [http://www.openwall.com/lists/oss-security/2026/06/14/1]
- [http://www.openwall.com/lists/oss-security/2026/06/14/2]
- [http://www.openwall.com/lists/oss-security/2026/06/14/3]
- [https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11034-1.json]
- [https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-9641]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-9641]
- [https://security-tracker.debian.org/tracker/CVE-2026-9641]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9641.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]