Vulnerability · CVE-2026-55888
xdg-desktop-portal: xdg-desktop-portal: Unauthorized host file access via unvalidated FileChooser filenames
Published Oct 23, 2026 · Red Hat Red Hat Enterprise Linux
Last checked Oct 25, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-55888. EPSS is 0.38%. Act only if a listed version of Red Hat Red Hat Enterprise Linux is installed.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2026-57845 · High
- CVE-2026-115754 · Medium
- CVE-2026-115730 · Low
- CVE-2026-55889 · Medium
- CVE-2026-115897 · Medium
- Severity
- High8.2
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.38%
- Remediation
- Vendor / distro source
- Affected products
- Red Hat Red Hat Enterprise Linux
xdg-desktop-portal: xdg-desktop-portal: Unauthorized host file access via unvalidated FileChooser filenames
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-55888
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
No version range is stored, so an installed version cannot be checked on this page.
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-55888. EPSS is 0.38%. Act only if a listed version of Red Hat Red Hat Enterprise Linux is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-22: Path Traversal. EPSS 0.38%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 23, 2026 · Red Hat Security Data
Detected
xdg-desktop-portal: xdg-desktop-portal: Unauthorized host file access via unvalidated FileChooser filenames
Sources
- CVE.orgVulnerability recordCVE-2026-55888
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-55888
30-day exploitation probability 0.38%
first.org - Red Hat Security DataVendor advisoryCVE-2026-55888
xdg-desktop-portal: xdg-desktop-portal: Unauthorized host file access via unvalidated FileChooser filenames
access.redhat.com
Freshness
Last verified in this catalog Oct 25, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 25, 2026
- CVE.orgOct 24, 2026
- Red Hat Security DataOct 24, 2026