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Vulnerability · Published Sep 15, 2026 · Assigned by VulDB

CVE-2026-90848Governikus AusweisApp StartPAOSResponse cross site scripting

Medium 4.3

In plain English

A medium-severity cross-site scripting in AusweisApp from Governikus. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.5%top 59.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A weakness has been identified in Governikus AusweisApp up to 2.5.4. Affected is an unknown function of the component StartPAOSResponse Handler. Executing a manipulation of the argument ResultMessage can lead to cross site scripting. The attack can be launched remotely. Upgrading to version 2.5.5 is able to address this issue. It is recommended to upgrade the affected component. This CVE was requested by the vendor.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12ausweisapp2no fix listedDEBIAN-CVE-2026-90848
Debian:13ausweisapp2no fix listedDEBIAN-CVE-2026-90848
Debian:14ausweisapp22.5.5-1DEBIAN-CVE-2026-90848
Ubuntu:22.04:LTSausweisapp2no fix listedUBUNTU-CVE-2026-90848
Ubuntu:24.04:LTSausweisapp2no fix listedUBUNTU-CVE-2026-90848
Ubuntu:26.04:LTSausweisapp2no fix listedUBUNTU-CVE-2026-90848
Ubuntu:26.10ausweisapp2no fix listedUBUNTU-CVE-2026-90848

Affected products (as reported)

VendorProductVersions
Governikus AusweisApp 2.5.02.5.12.5.22.5.32.5.4

Weakness: CWE-79, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C

References