🛡️ OESA-2026-3053 — yelp

🟠 CVSS 8.0 — High ✅ No Known Exploit OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

yelp security update

Yelp is the help viewer in GNOME. It natively views Mallard, DocBook, man, info, and HTML documents. It can locate documents according to the freedesktop.org help system specification.

Security Fix(es):

A flaw was found in Yelp due to an overly permissive Content Security Policy (CSP) implementation provided by yelp-xsl. A malicious Flatpak application can open crafted help content through the OpenURI portal. By embedding an untrusted CSS stylesheet within a structured SVG document, attacker-controlled content can bypass Flatpak's intended sandbox isolation, allowing Yelp to evaluate local XML inclusions and disclose arbitrary user-readable host files through remote CSS resource requests. This may result in the unauthorized disclosure of sensitive information.(CVE-2026-13601)

Affected software

OESA-2026-3053 is recorded against 1 package.

  • yelp (fixed in 42.3-2.oe2403sp4)

Timeline and source

Published on 19 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

www.openeuler.org (Advisory)
nvd.nist.gov (Advisory)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-07-19
Updated 2026-08-12
Modified 2026-07-19
Fix URL N/A

Affected Packages

Software From version Fixed in
yelp — 42.3-2.oe2403sp4

Similar Threats

Site Security Check

Is yelp part of your stack?

OESA-2026-3053 is rated CVSS 8.0 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.