CVE catalog
CVE-2026-13601
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 OpenUR
- Severity
- High · CVSS 7.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.18% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | yelp | sid | 49.2-1 | fixed |
| Debian | yelp | forky | 49.2-1 | fixed |
| Debian | yelp | trixie | 42.2-4+deb13u1 | fixed |
| Debian | yelp | trixie-security | 42.2-4+deb13u1 | fixed |
| Debian | yelp | bookworm | 42.2-1+deb12u2 | fixed |
| Debian | yelp | bookworm-security | 42.2-1+deb12u2 | fixed |
| Cpe | enterprise_linux | Not reported | Not reported | unknown |
| Cpe | yelp | Not reported | 49.1 | fixed |
| Cpe | yelp | Not reported | 42.2-1+deb12u2 | fixed |
| Ubuntu | yelp | noble | 42.2-1ubuntu0.24.04.2 | fixed |
| Ubuntu | libyelp-dev | noble | 42.2-1ubuntu0.24.04.2 | fixed |
| Ubuntu | libyelp0 | noble | 42.2-1ubuntu0.24.04.2 | fixed |
| Cpe | enterprise_linux | Not reported | Not reported | unknown |
| Cpe | yelp | Not reported | 49.1 | fixed |
| Ubuntu | yelp | pro | 3.34.0-1 | vulnerable |
| Ubuntu | yelp | pro | 3.36.0-1 | vulnerable |
| Ubuntu | yelp | pro | 3.36.2-0ubuntu1 | vulnerable |
| Ubuntu | yelp | pro | 3.36.2-0ubuntu1.1 | vulnerable |
| Ubuntu | yelp | pro | 3.36.2-0ubuntu1.1+esm1 | fixed |
| Ubuntu | yelp | 22.04 | 40.stable-1build1 | vulnerable |
| Ubuntu | yelp | 22.04 | 41.1-1 | vulnerable |
| Ubuntu | yelp | 22.04 | 41.2-1 | vulnerable |
| Ubuntu | yelp | 22.04 | 42~beta-2 | vulnerable |
| Ubuntu | yelp | 22.04 | 42.0-1 | vulnerable |
| Ubuntu | yelp | 22.04 | 42.1-1 | vulnerable |
| Ubuntu | yelp | 22.04 | 42.1-1ubuntu0.1 | vulnerable |
| Ubuntu | yelp | 22.04 | 42.1-1ubuntu0.2 | fixed |
| Ubuntu | yelp | 24.04 | 42.2-1 | vulnerable |
| Ubuntu | yelp | 24.04 | 42.2-1build1 | vulnerable |
| Ubuntu | yelp | 24.04 | 42.2-1build2 | vulnerable |
| Ubuntu | yelp | 24.04 | 42.2-1ubuntu0.24.04.1 | vulnerable |
| Ubuntu | yelp | 24.04 | 42.2-1ubuntu0.24.04.2 | fixed |
| Ubuntu | yelp | 26.04 | 42.3-3ubuntu1 | vulnerable |
| Ubuntu | yelp | 26.04 | 49.0-4 | vulnerable |
| Ubuntu | yelp | 26.04 | 49.0-5 | vulnerable |
| Ubuntu | yelp | 26.04 | 49.0-5ubuntu0.1 | fixed |
| Ubuntu | yelp | pro | 3.34.0-1 | vulnerable |
| Ubuntu | yelp | pro | 3.36.0-1 | vulnerable |
| Ubuntu | yelp | pro | 3.36.2-0ubuntu1 | vulnerable |
| Ubuntu | yelp | pro | 3.36.2-0ubuntu1.1 | vulnerable |
| Ubuntu | yelp | pro | 3.36.2-0ubuntu1.1+esm1 | fixed |
| Ubuntu | yelp | 22.04 | 40.stable-1build1 | vulnerable |
| Ubuntu | yelp | 22.04 | 41.1-1 | vulnerable |
| Ubuntu | yelp | 22.04 | 41.2-1 | vulnerable |
| Ubuntu | yelp | 22.04 | 42~beta-2 | vulnerable |
| Ubuntu | yelp | 22.04 | 42.0-1 | vulnerable |
| Ubuntu | yelp | 22.04 | 42.1-1 | vulnerable |
| Ubuntu | yelp | 22.04 | 42.1-1ubuntu0.1 | vulnerable |
| Ubuntu | yelp | 22.04 | 42.1-1ubuntu0.2 | fixed |
| Ubuntu | yelp | 24.04 | 42.2-1 | vulnerable |
| Ubuntu | yelp | 24.04 | 42.2-1build1 | vulnerable |
| Ubuntu | yelp | 24.04 | 42.2-1build2 | vulnerable |
| Ubuntu | yelp | 24.04 | 42.2-1ubuntu0.24.04.1 | vulnerable |
| Ubuntu | yelp | 24.04 | 42.2-1ubuntu0.24.04.2 | fixed |
| Ubuntu | yelp | 25.10 | 42.2-2 | vulnerable |
| Ubuntu | yelp | 25.10 | 42.2-4 | vulnerable |
| Ubuntu | yelp | 25.10 | 42.2-4build1 | vulnerable |
| Ubuntu | yelp | 25.10 | 42.3-1 | vulnerable |
| Ubuntu | yelp | 25.10 | 42.3-3ubuntu1 | vulnerable |
| Ubuntu | yelp | 26.04 | 42.3-3ubuntu1 | vulnerable |
| Ubuntu | yelp | 26.04 | 49.0-4 | vulnerable |
| Ubuntu | yelp | 26.04 | 49.0-5 | vulnerable |
| Ubuntu | yelp | 26.04 | 49.0-5ubuntu0.1 | fixed |
| Suse | yelp | linux enterprise server 16.0 | 42.3-160000.3.1 | fixed |
| Suse | yelp | linux enterprise server for sap applications 16.0 | 42.3-160000.3.1 | fixed |
| Suse | yelp | linux enterprise module for desktop applications 15 sp7 | 42.2-150600.3.6.1 | fixed |
| Suse | yelp | linux enterprise server 15 sp6-ltss | 42.2-150600.3.6.1 | fixed |
| Suse | yelp | linux enterprise server for sap applications 15 sp6 | 42.2-150600.3.6.1 | fixed |
| Suse | yelp | linux enterprise server 12 sp5-ltss | 3.20.1-7.6.1 | fixed |
| Suse | yelp | linux enterprise server ltss extended security 12 sp5 | 3.20.1-7.6.1 | fixed |
| Suse | yelp | linux enterprise high performance computing 15 sp4-espos | 41.2-150400.3.6.1 | fixed |
| Suse | yelp | linux enterprise high performance computing 15 sp4-ltss | 41.2-150400.3.6.1 | fixed |
| Suse | yelp | linux enterprise high performance computing 15 sp5-espos | 41.2-150400.3.6.1 | fixed |
| Suse | yelp | linux enterprise high performance computing 15 sp5-ltss | 41.2-150400.3.6.1 | fixed |
| Suse | yelp | linux enterprise server 15 sp4-ltss | 41.2-150400.3.6.1 | fixed |
| Suse | yelp | linux enterprise server 15 sp5-ltss | 41.2-150400.3.6.1 | fixed |
| Suse | yelp | linux enterprise server for sap applications 15 sp4 | 41.2-150400.3.6.1 | fixed |
| Suse | yelp | linux enterprise server for sap applications 15 sp5 | 41.2-150400.3.6.1 | fixed |
| Opensuse | yelp | leap 16.0 | 42.3-160000.3.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | yelp | source | sid | 49.1-1 | not yet assigned | Not reported | [1136299] |
| Debian | yelp | source | forky | 49.1-1 | not yet assigned | Not reported | [1136299] |
| Debian | yelp | source | trixie | 42.2-4+deb13u1 | not yet assigned | Not reported | [1136299] |
| Debian | yelp | source | bookworm | 42.2-1+deb12u2 | not yet assigned | Not reported | [1136299] |
| Cpe | yelp | cpe | Not reported | 49.1 | Not reported | Not reported | Not reported |
| Cpe | yelp | cpe | Not reported | 42.2-1+deb12u2 | Not reported | Not reported | Not reported |
| Ubuntu | yelp | deb | noble | 42.2-1ubuntu0.24.04.2 | Not reported | Not reported | Not reported |
| Ubuntu | libyelp-dev | deb | noble | 42.2-1ubuntu0.24.04.2 | Not reported | Not reported | Not reported |
| Ubuntu | libyelp0 | deb | noble | 42.2-1ubuntu0.24.04.2 | Not reported | Not reported | Not reported |
| Cpe | yelp | cpe | Not reported | 49.1 | Not reported | NVD-CVE-2026-13601 | Not reported |
| Ubuntu | yelp | deb | pro | 3.36.2-0ubuntu1.1+esm1 | Not reported | USN-8627-1 | Not reported |
| Ubuntu | yelp | deb | 22.04 | 42.1-1ubuntu0.2 | Not reported | USN-8627-1 | Not reported |
| Ubuntu | yelp | deb | 24.04 | 42.2-1ubuntu0.24.04.2 | Not reported | USN-8627-1 | Not reported |
| Ubuntu | yelp | deb | 26.04 | 49.0-5ubuntu0.1 | Not reported | USN-8627-1 | Not reported |
| Ubuntu | yelp | deb | pro | 3.36.2-0ubuntu1.1+esm1 | Not reported | UBUNTU-CVE-2026-13601 | Not reported |
| Ubuntu | yelp | deb | 22.04 | 42.1-1ubuntu0.2 | Not reported | UBUNTU-CVE-2026-13601 | Not reported |
| Ubuntu | yelp | deb | 24.04 | 42.2-1ubuntu0.24.04.2 | Not reported | UBUNTU-CVE-2026-13601 | Not reported |
| Ubuntu | yelp | deb | 26.04 | 49.0-5ubuntu0.1 | Not reported | UBUNTU-CVE-2026-13601 | Not reported |
| Suse | yelp | rpm | linux enterprise server 16.0 | 42.3-160000.3.1 | Not reported | SUSE-SU-2026:22625-1 | Not reported |
| Suse | yelp | rpm | linux enterprise server for sap applications 16.0 | 42.3-160000.3.1 | Not reported | SUSE-SU-2026:22625-1 | Not reported |
| Suse | yelp | rpm | linux enterprise module for desktop applications 15 sp7 | 42.2-150600.3.6.1 | Not reported | SUSE-SU-2026:3036-1 | Not reported |
| Suse | yelp | rpm | linux enterprise server 15 sp6-ltss | 42.2-150600.3.6.1 | Not reported | SUSE-SU-2026:3036-1 | Not reported |
| Suse | yelp | rpm | linux enterprise server for sap applications 15 sp6 | 42.2-150600.3.6.1 | Not reported | SUSE-SU-2026:3036-1 | Not reported |
| Suse | yelp | rpm | linux enterprise server 12 sp5-ltss | 3.20.1-7.6.1 | Not reported | SUSE-SU-2026:3035-1 | Not reported |
| Suse | yelp | rpm | linux enterprise server ltss extended security 12 sp5 | 3.20.1-7.6.1 | Not reported | SUSE-SU-2026:3035-1 | Not reported |
| Suse | yelp | rpm | linux enterprise high performance computing 15 sp4-espos | 41.2-150400.3.6.1 | Not reported | SUSE-SU-2026:3037-1 | Not reported |
| Suse | yelp | rpm | linux enterprise high performance computing 15 sp4-ltss | 41.2-150400.3.6.1 | Not reported | SUSE-SU-2026:3037-1 | Not reported |
| Suse | yelp | rpm | linux enterprise high performance computing 15 sp5-espos | 41.2-150400.3.6.1 | Not reported | SUSE-SU-2026:3037-1 | Not reported |
| Suse | yelp | rpm | linux enterprise high performance computing 15 sp5-ltss | 41.2-150400.3.6.1 | Not reported | SUSE-SU-2026:3037-1 | Not reported |
| Suse | yelp | rpm | linux enterprise server 15 sp4-ltss | 41.2-150400.3.6.1 | Not reported | SUSE-SU-2026:3037-1 | Not reported |
| Suse | yelp | rpm | linux enterprise server 15 sp5-ltss | 41.2-150400.3.6.1 | Not reported | SUSE-SU-2026:3037-1 | Not reported |
| Suse | yelp | rpm | linux enterprise server for sap applications 15 sp4 | 41.2-150400.3.6.1 | Not reported | SUSE-SU-2026:3037-1 | Not reported |
| Suse | yelp | rpm | linux enterprise server for sap applications 15 sp5 | 41.2-150400.3.6.1 | Not reported | SUSE-SU-2026:3037-1 | Not reported |
| Opensuse | yelp | rpm | leap 16.0 | 42.3-160000.3.1 | Not reported | OPENSUSE-SU-2026:21295-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libyelp0]Fixed
Source package: [yelp]
Details (4)
42.2-1+deb12u2· amd64 · bookwormFixed · Fixed:
42.2-1+deb12u2nvd · yelp · debian · bookworm; nvd · yelp · debian · 12
42.2-1+deb12u2· arm64 · bookwormFixed · Fixed:
42.2-1+deb12u2nvd · yelp · debian · bookworm; nvd · yelp · debian · 12
42.2-1+deb12u2· amd64 · bookworm-securityFixed · Fixed:
42.2-1+deb12u2nvd · yelp · debian · bookworm; nvd · yelp · debian · 12
42.2-1+deb12u2· arm64 · bookworm-securityFixed · Fixed:
42.2-1+deb12u2nvd · yelp · debian · bookworm; nvd · yelp · debian · 12
- [libyelp-dev]Fixed
Source package: [yelp]
Details (4)
42.2-1+deb12u2· amd64 · bookwormFixed · Fixed:
42.2-1+deb12u2nvd · yelp · debian · bookworm; nvd · yelp · debian · 12
42.2-1+deb12u2· arm64 · bookwormFixed · Fixed:
42.2-1+deb12u2nvd · yelp · debian · bookworm; nvd · yelp · debian · 12
42.2-1+deb12u2· amd64 · bookworm-securityFixed · Fixed:
42.2-1+deb12u2nvd · yelp · debian · bookworm; nvd · yelp · debian · 12
42.2-1+deb12u2· arm64 · bookworm-securityFixed · Fixed:
42.2-1+deb12u2nvd · yelp · debian · bookworm; nvd · yelp · debian · 12
- [yelp]Fixed
Details (4)
42.2-1+deb12u2· amd64 · bookwormFixed · Fixed:
42.2-1+deb12u2nvd · yelp · debian · bookworm; nvd · yelp · debian · 12
42.2-1+deb12u2· arm64 · bookwormFixed · Fixed:
42.2-1+deb12u2nvd · yelp · debian · bookworm; nvd · yelp · debian · 12
42.2-1+deb12u2· amd64 · bookworm-securityFixed · Fixed:
42.2-1+deb12u2nvd · yelp · debian · bookworm; nvd · yelp · debian · 12
42.2-1+deb12u2· arm64 · bookworm-securityFixed · Fixed:
42.2-1+deb12u2nvd · yelp · debian · bookworm; nvd · yelp · debian · 12
[Debian 13 (Trixie)]
- [libyelp0]Fixed
Source package: [yelp]
Details (4)
42.2-4+deb13u1· amd64 · trixieFixed · Fixed:
42.2-4+deb13u1nvd · yelp · debian · 13
42.2-4+deb13u1· arm64 · trixieFixed · Fixed:
42.2-4+deb13u1nvd · yelp · debian · 13
42.2-4+deb13u1· amd64 · trixie-securityFixed · Fixed:
42.2-4+deb13u1nvd · yelp · debian · 13
42.2-4+deb13u1· arm64 · trixie-securityFixed · Fixed:
42.2-4+deb13u1nvd · yelp · debian · 13
- [libyelp-dev]Fixed
Source package: [yelp]
Details (4)
42.2-4+deb13u1· amd64 · trixieFixed · Fixed:
42.2-4+deb13u1nvd · yelp · debian · 13
42.2-4+deb13u1· arm64 · trixieFixed · Fixed:
42.2-4+deb13u1nvd · yelp · debian · 13
42.2-4+deb13u1· amd64 · trixie-securityFixed · Fixed:
42.2-4+deb13u1nvd · yelp · debian · 13
42.2-4+deb13u1· arm64 · trixie-securityFixed · Fixed:
42.2-4+deb13u1nvd · yelp · debian · 13
- [yelp]Fixed
Details (4)
42.2-4+deb13u1· amd64 · trixieFixed · Fixed:
42.2-4+deb13u1nvd · yelp · debian · 13
42.2-4+deb13u1· arm64 · trixieFixed · Fixed:
42.2-4+deb13u1nvd · yelp · debian · 13
42.2-4+deb13u1· amd64 · trixie-securityFixed · Fixed:
42.2-4+deb13u1nvd · yelp · debian · 13
42.2-4+deb13u1· arm64 · trixie-securityFixed · Fixed:
42.2-4+deb13u1nvd · yelp · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2026_54539.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-13601]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-13601]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22625-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3035-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3036-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3037-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-13601]
- [https://osv.dev/vulnerability/USN-8627-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21295-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-13601]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-13601.json]
- [https://ubuntu.com/security/notices/USN-8627-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2835.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]