CVE-2026-88842 (GCVE-0-2026-88842)

Vulnerability from cvelistv5 – Published: 2026-10-14 10:02 – Updated: 2026-10-15 19:33
VLAI
Title
Busybox: busybox: dpkg stale field_start pointer causes out-of-bounds read and status file corruption
Summary
A flaw was found in BusyBox dpkg. The write_status_file() function does not reset a field cursor between package stanzas. When two packages are removed in a single invocation and the first stanza is larger than the second, the second package stanza can be dropped from the status file, causing limited data corruption.
Severity
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 10:52 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1211 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:81391 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-88842 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2531355 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Hardened Images Unaffected: 1.37.0-9.4.hum1 , < * (rpm)
    cpe:/a:redhat:hummingbird:1
Create a notification for this product.
Date Public
2026-10-14 08:45
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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Workarounds

CNA · redhat
Do not use BusyBox dpkg for package management on systems where package integrity is critical. Remove packages one at a time if BusyBox dpkg must be used. Upstream should reset field_start at the beginning of each stanza iteration in write_status_file().

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