{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-8612", "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "state": "PUBLISHED", "assignerShortName": "CPANSec", "dateReserved": "2026-05-14T16:30:23.954Z", "datePublished": "2026-05-15T01:11:55.018Z", "dateUpdated": "2026-05-15T14:31:14.593Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "WWW-Mechanize-Cached", "product": "WWW::Mechanize::Cached", "programFiles": ["lib/WWW/Mechanize/Cached.pm"], "programRoutines": [{"name": "WWW::Mechanize::Cached::_build_cache"}, {"name": "WWW::Mechanize::Cached::_make_request"}], "repo": "https://github.com/libwww-perl/WWW-Mechanize-Cached", "vendor": "OALDERS", "versions": [{"lessThan": "2.00", "status": "affected", "version": "0", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "WWW::Mechanize::Cached versions before 2.00 for Perl deserialize cached HTTP responses from a world-writable on-disk cache, enabling local response forgery and code execution.\n\nWith no explicit cache backend, WWW::Mechanize::Cached constructs a default Cache::FileCache under /tmp/FileCache without overriding the backend's documented directory_umask of 000, so the cache root and its subdirectories are created mode 0777 with no sticky bit. Cache entries are named by sha1_hex of the request and read back through Storable::thaw on the next cache hit.\n\nA local attacker with write access to the cache tree can replace a victim's cache entry for a known URL with an arbitrary frozen HTTP::Response blob, causing the victim's next get() of that URL to return attacker controlled response bytes. Because the bytes are passed to Storable::thaw, a victim process that has loaded any class with a side-effectful STORABLE_thaw, DESTROY, or overload hook can be escalated to arbitrary code execution."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-732", "description": "CWE-732 Incorrect Permission Assignment for Critical Resource", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-502", "description": "CWE-502 Deserialization of Untrusted Data", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "shortName": "CPANSec", "dateUpdated": "2026-05-15T01:11:55.018Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/libwww-perl/WWW-Mechanize-Cached/pull/36"}, {"tags": ["patch"], "url": "https://github.com/libwww-perl/WWW-Mechanize-Cached/commit/b821647deeedf83490ebc1db91d959d942300ce0.patch"}, {"tags": ["release-notes"], "url": "https://metacpan.org/release/OALDERS/WWW-Mechanize-Cached-2.00/changes"}], "solutions": [{"lang": "en", "value": "Upgrade to WWW-Mechanize-Cached 2.00 or later."}], "source": {"discovery": "UNKNOWN"}, "timeline": [{"lang": "en", "time": "2026-05-13T00:00:00.000Z", "value": "Issue reported."}, {"lang": "en", "time": "2026-05-14T00:00:00.000Z", "value": "WWW-Mechanize-Cached 2.00 released with fix."}], "title": "WWW::Mechanize::Cached versions before 2.00 for Perl deserialize cached HTTP responses from a world-writable on-disk cache, enabling local response forgery and code execution", "x_generator": {"engine": "cpansec-cna-tool 0.1"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/05/15/1"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-05-15T05:18:42.682Z"}}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-05-15T14:30:45.332316Z", "id": "CVE-2026-8612", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-15T14:31:14.593Z"}}]}}

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{}

{"created": "2026-05-15T04:00:12.860665+00:00", "updated": "2026-05-15T18:15:05.631749+00:00", "vendors": []}