{"id":"CVE-2026-108518","published":"2026-10-20T22:18:48.423","lastModified":"2026-10-22T17:21:57.293","description":"DBI versions before 1.656 for Perl crash via type confusion in dbi_profile when a database handle is destroyed under a Profile Path with an {attr} element.\n\nAn {attr} element names a database handle attribute, which dbi_profile reads from the handle's inner hash. It expects the inner handle as a reference and dereferences it, but a handle that is being destroyed hands back the inner hash itself, so the dereference yields the hash's bucket array. A type check on that pointer usually fails and the call goes unprofiled. When the memory it addresses passes the check, the attribute lookup dereferences a NULL or invalid pointer and the process dies on SIGSEGV.\n\nThe Path is set by the application, by the Profile handle attribute, or by the DBI_PROFILE environment variable, so `DBI_PROFILE={ImplementorClass}` can crash an unmodified program.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-843"],"vendors":[],"products":[],"references":[{"url":"https://github.com/perl5-dbi/dbi/commit/c2ff4df575d7af625bb4d0d1ef7539f90b22d8b2.patch","tags":[]},{"url":"https://github.com/perl5-dbi/dbi/security/advisories/GHSA-7393-6f8r-fhh3","tags":[]},{"url":"https://metacpan.org/release/HMBRAND/DBI-1.656/changes","tags":[]},{"url":"http://www.openwall.com/lists/oss-security/2026/10/20/37","tags":[]}],"exploitRefs":[{"url":"https://github.com/perl5-dbi/dbi/commit/c2ff4df575d7af625bb4d0d1ef7539f90b22d8b2.patch","tags":[]},{"url":"https://github.com/perl5-dbi/dbi/security/advisories/GHSA-7393-6f8r-fhh3","tags":[]}],"hasPoc":true,"ai":null}