CVE-2026-35371: coreutils — Exploit

Description

The id utility in uutils coreutils exhibits incorrect behavior in its "pretty print" output when the real UID and effective UID differ. The implementation incorrectly uses the effective GID instead of the effective UID when performing a name lookup for the effective user. This results in misleading diagnostic output that can cause automated scripts or system administrators to make incorrect decisions regarding file permissions or access control.

Is your site exposed to CVE-2026-35371?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

3.3

LOW

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploit Prediction

0.0001

Probability of exploitation

0.02%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-451 CWE-451

Affected Products

Vendor	Product	Versions
uutils	coreutils	All

References

Exploits

https://github.com/uutils/coreutils/issues/10006 https://github.com/uutils/coreutils/issues/10006

Frequently Asked Questions

What is CVE-2026-35371? +

The id utility in uutils coreutils exhibits incorrect behavior in its "pretty print" output when the real UID and effective UID differ. The implementation incorrectly uses the effective GID instead of the effective UID when performing a name lookup for the effective user. This results in misleading diagnostic output that can cause automated scripts or system administrators to make incorrect decisions regarding file permissions or access control. It has a CVSS v3.1 base score of 3.3 (LOW).

How severe is CVE-2026-35371? +

CVE-2026-35371 has a CVSS v3.1 score of 3.3 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0001, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-35371? +

CVE-2026-35371 affects products from uutils, specifically: coreutils. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-35371? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-84356

UI misrepresentation in FullScreen in Google Chrome prior to 152.0.7977.75 allowed a remote attacker to spoof address bar via a …

CVE-2026-45150

Zen is a firefox-based browser. Prior to 1.19.13b, Zen Browser did not provide a persistent, clearly visible security notification when …

CVE-2024-52277

User Interface (UI) Misrepresentation of Critical Information vulnerability in DocuSeal allows Content Spoofing.Displayed version does not show the layer flattened …

CVE-2024-52270

User Interface (UI) Misrepresentation of Critical Information vulnerability in DropBox Sign(HelloSign) allows Content Spoofing. Displayed version does not show the …

CVE-2024-52271

User Interface (UI) Misrepresentation of Critical Information vulnerability in Documenso allows Content Spoofing.Displayed version does not show the layer flattened …

CVE-2026-84330

UI misrepresentation in FullScreen in Google Chrome on on Android prior to 152.0.7977.75 allowed a remote attacker to spoof address …

CVE-2026-35371