CVE-2026-102473 (GCVE-0-2026-102473)

Vulnerability from cvelistv5 – Published: 2026-09-29 09:22 – Updated: 2026-09-30 20:11
VLAI
Title
Dash: dash: super-polynomial backtracking in pmatch when libc fnmatch is disabled
Summary
A flaw was found in dash. When built without libc fnmatch, the internal pmatch() matcher implements * by unbounded recursion over candidate positions. A local user who can plant filenames, or otherwise feed that matcher, can make a short multi-star pattern such as *.*.*.*.*.tar.gz consume excessive CPU.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 19:42 UTC
CWE
  • CWE-1333 - Inefficient Regular Expression Complexity
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1035 records in the last 180 days details
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-102473 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2543005 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Date Public
2026-09-29 00:00
Credits
Red Hat would like to thank Shubham Raj (Causal Security) for reporting this issue.
Show details on NVD website
To clipboard 

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