Medium
libcrypt-pbkdf2-perl — security advisory
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.
- Products
- libcrypt-pbkdf2-perl
- Affected versions
- 0.150900-1, 0.160410-1, 0.161520-1, 0.161520-2, 0.261630-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-9641
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:34 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-9641
libcrypt-pbkdf2-perl
Fixed versions: Not specified
libcrypt-pbkdf2-perl
Fixed versions: Not specified
libcrypt-pbkdf2-perl
Fixed versions: Not specified
libcrypt-pbkdf2-perl
Fixed versions: Not specified
libcrypt-pbkdf2-perl
Fixed versions: Not specified
libcrypt-pbkdf2-perl
Fixed versions: Not specified
libcrypt-pbkdf2-perl
Fixed versions: Not specified
libcrypt-pbkdf2-perl
Fixed versions: Not specified
Complete source record
{
"id": "1e84d78a74c140120cba5c985ae104993891031c2beb4d4b8a2c972d83bb898e",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-9641",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-9641",
"summary": "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.",
"evidence": "osv:UBUNTU-CVE-2026-9641",
"products": [
{
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"aliases": [
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"metrics": [
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"versions": [
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},
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"ecosystem": "Ubuntu:26.10"
},
"versions": [
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"0.261630-1"
],
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},
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"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
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],
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],
"modified": "2026-10-17T13:01:19.594560678Z",
"provider": "osv",
"upstream": [
"CVE-2026-9641"
],
"references": [
"https://ubuntu.com/security/CVE-2026-9641",
"https://www.cve.org/CVERecord?id=CVE-2026-9641",
"https://lists.security.metacpan.org/cve-announce/msg/40933040/",
"https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2",
"https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes"
]
},
"related_cves": [
{
"value": "CVE-2026-9641",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 361693,
"published_at": "2026-06-12T16:16:00+00:00"
}