CVE Explorer
CVE-2026-59139
Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked.
The attach-time validator reqrep_validate_header checks the header scalars and region layout against the file size, but does not validate the array contents it then trusts. reqrep_recv_locked does memcpy(copy_buf, req_arena + arena_off, len) with arena_off and len read raw from the mmap'd segment and never bounded against the arena capacity (req_arena_
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","packageName":"Data-ReqRep-Shared","product":"Data::ReqRep::Shared","programFiles":["reqrep.h"],"programRoutines":[{"name":"reqrep_recv_locked"}],"repo":"https://github.com/vividsnow/perl5-data-reqrep-shared","vendor":"EGOR","versions":[{"lessThan":"0.05","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:99c0bf180a44431041f0a2076c1ee21100b9c18ded0d1ca7157576cb5a9c2375 · sha256:78f87d144399e7f5… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:99c0bf180a44431041f0a2076c1ee21100b9c18ded0d1ca7157576cb5a9c2375 · sha256:78f87d144399e7f5… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:99c0bf180a44431041f0a2076c1ee21100b9c18ded0d1ca7157576cb5a9c2375 · sha256:78f87d144399e7f5… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"tags":["release-notes"],"url":"https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/changes"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:99c0bf180a44431041f0a2076c1ee21100b9c18ded0d1ca7157576cb5a9c2375 · sha256:78f87d144399e7f5… · /containers/cna/references/1
{"url":"https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/diff/EGOR/Data-ReqRep-Shared-0.04#reqrep.h"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:99c0bf180a44431041f0a2076c1ee21100b9c18ded0d1ca7157576cb5a9c2375 · sha256:78f87d144399e7f5… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.