🛡️ OESA-2026-3000 — xdg-desktop-portal (CVE-2026-55888)

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: High — total loss, or loss the attacker controls.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: High — total loss, or loss the attacker controls.

Affected software

OESA-2026-3000 is recorded against 1 package.

• xdg-desktop-portal (fixed in 1.20.4-2.oe2403sp4)

Timeline and source

Published on 19 July 2026 and last revised on 18 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

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

Other advisories for this package

xdg-desktop-portal has other advisories on record. If you are patching this one, these are worth checking on the same host:

• OESA-2026-2999 (9.5 Critical, published 19 Jul 2026)
• OESA-2026-2998 (9.5 Critical, published 19 Jul 2026)
• SUSE-SU-2026:2712-1 (published 30 Jun 2026)
• USN-8287-1 (published 20 May 2026)
• OESA-2026-2184 (2.0 Low, published 3 May 2026)
• OESA-2026-2183 (2.0 Low, published 3 May 2026)
• OESA-2026-2182 (2.0 Low, published 3 May 2026)
• CVE-2026-40354 (2.9 Low, published 11 Apr 2026)

Details

Affected Packages

References