HOMEVULNERABILITIESCVE-2026-35339
MEDIUM

CVE-2026-35339

CWE-253Published: April 22, 2026· Updated: Apr 22, 2026

5.5
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:1.2th

Official Description

The recursive mode (-R) of the chmod utility in uutils coreutils incorrectly handles exit codes when processing multiple files. The final return value is determined solely by the success or failure of the last file processed. This allows the command to return an exit code of 0 (success) even if errors were encountered on previous files, such as 'Operation not permitted'. Scripts relying on these exit codes may proceed under a false sense of success while sensitive files remain with restrictive or incorrect permissions.

NVD Source

Technical Analysis

CVE-2026-35339 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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All References (2)

→
https://github.com/uutils/coreutils/pull/9793
→
https://github.com/uutils/coreutils/releases/tag/0.6.0

Quick Facts

CVE IDCVE-2026-35339
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-253
CISA KEVNo
EPSS (30d)0.01%
PublishedApr 22, 2026

Related CVEs (CWE-253)

CVE-2026-35091
8.2
CVE-2026-46419
7.5
CVE-2026-5818
7.2
CVE-2026-35340
5.5
CVE-2026-43863
3.7

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-35339 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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