CVE-2026-9641 (GCVE-0-2026-9641)
Vulnerability from cvelistv5 – Published: 2026-06-12 14:57 – Updated: 2026-06-14 14:46
VLAI?
Title
Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations
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.
Severity ?
5.3 (Medium)
CWE
- CWE-916 - Use of Password Hash With Insufficient Computational Effort
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| ARODLAND | Crypt::PBKDF2 |
Affected:
0 , < 0.261630
(custom)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-9641",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-12T17:46:14.634769Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-12T17:46:30.101Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2026-06-14T14:46:24.576Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/06/12/5"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/06/13/1"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/06/14/1"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/06/14/2"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/06/14/3"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"packageName": "Crypt-PBKDF2",
"product": "Crypt::PBKDF2",
"repo": "https://github.com/arodland/Crypt-PBKDF2",
"vendor": "ARODLAND",
"versions": [
{
"lessThan": "0.261630",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations.\n\nThe default algorithm is HMAC-SHA1, which should only be used for legacy systems.\n\nThese versions default to using 1000 iterations.\n\nDepending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-916",
"description": "CWE-916 Use of Password Hash With Insufficient Computational Effort",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-12T14:57:30.534Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"tags": [
"technical-description"
],
"url": "https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2"
},
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to version 0.261630 or later."
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations",
"workarounds": [
{
"lang": "en",
"value": "Change the default algorithm to something stronger, such as \"HMACSHA2\", and the output_len accordingly (32 for SHA256).\n\nThe number of iterations should also be increased (600,000 for SHA256, for example)."
}
],
"x_generator": {
"engine": "cpansec-cna-tool 0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2026-9641",
"datePublished": "2026-06-12T14:57:30.534Z",
"dateReserved": "2026-05-26T18:44:37.132Z",
"dateUpdated": "2026-06-14T14:46:24.576Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://www.openwall.com/lists/oss-security/2026/06/12/5\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2026/06/13/1\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2026/06/14/1\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2026/06/14/2\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2026/06/14/3\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2026-06-14T14:46:24.576Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"LOW\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-9641\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-12T17:46:14.634769Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-12T17:45:22.726Z\"}}], \"cna\": {\"title\": \"Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"affected\": [{\"repo\": \"https://github.com/arodland/Crypt-PBKDF2\", \"vendor\": \"ARODLAND\", \"product\": \"Crypt::PBKDF2\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"0.261630\", \"versionType\": \"custom\"}], \"packageName\": \"Crypt-PBKDF2\", \"collectionURL\": \"https://cpan.org/modules\", \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Upgrade to version 0.261630 or later.\"}], \"references\": [{\"url\": \"https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2\", \"tags\": [\"technical-description\"]}, {\"url\": \"https://metacpan.org/release/ARODLAND/Crypt-PBKDF2-0.261630/changes\", \"tags\": [\"release-notes\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Change the default algorithm to something stronger, such as \\\"HMACSHA2\\\", and the output_len accordingly (32 for SHA256).\\n\\nThe number of iterations should also be increased (600,000 for SHA256, for example).\"}], \"x_generator\": {\"engine\": \"cpansec-cna-tool 0.1\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations.\\n\\nThe default algorithm is HMAC-SHA1, which should only be used for legacy systems.\\n\\nThese versions default to using 1000 iterations.\\n\\nDepending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-916\", \"description\": \"CWE-916 Use of Password Hash With Insufficient Computational Effort\"}]}], \"providerMetadata\": {\"orgId\": \"9b29abf9-4ab0-4765-b253-1875cd9b441e\", \"shortName\": \"CPANSec\", \"dateUpdated\": \"2026-06-12T14:57:30.534Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-9641\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-14T14:46:24.576Z\", \"dateReserved\": \"2026-05-26T18:44:37.132Z\", \"assignerOrgId\": \"9b29abf9-4ab0-4765-b253-1875cd9b441e\", \"datePublished\": \"2026-06-12T14:57:30.534Z\", \"assignerShortName\": \"CPANSec\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…