CVE-2026-59143 (GCVE-0-2026-59143)

Vulnerability from cvelistv5 – Published: 2026-07-21 19:04 – Updated: 2026-07-23 12:14
VLAI
Title
Data::RoaringBitmap::Shared versions before 0.02 for Perl allow an out-of-bounds read via an unvalidated container offset and cardinality in rb_contains_locked
Summary
Data::RoaringBitmap::Shared versions before 0.02 for Perl allow an out-of-bounds read via an unvalidated container offset and cardinality in rb_contains_locked. The attach-time validator rb_validate_header checks the header scalars and region layout against the file size, but does not validate the bucket contents it then trusts. rb_contains_locked forms a container pointer as pool + container_off * 8192 from a raw file-stored offset and then searches over a file-stored cardinality, neither bounded against the container pool capacity or the fixed 8192-byte slot size. A local peer that can write the backing file can leave the header valid while poisoning a bucket, so the next membership query dereferences a file-controlled wild pointer and scans a file-controlled count, reading adjacent memory or crashing the process.
Severity
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 12:14 UTC
CWE
Assigner
CPANSec CNA under the redhat root
CNA scorecard C 62/100 over 342 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
EGOR Data::RoaringBitmap::Shared Affected: 0 , < 0.02 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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