Vulnerability · Published Aug 7, 2026 · Assigned by GitHub_M

CVE-2026-69127Kirby: System path exposure from error messages in the REST API

Medium 6.9

In plain English

A medium-severity security flaw in kirby from getkirby. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)6.9Medium

Exploit odds (30 days)0.7%top 46.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Kirby is an open-source content management system. Prior to 4.9.5 and from 5.0.0 through 5.5.1, the REST API error handler can return unsanitized PHP error messages that expose the full filesystem path of the Kirby installation to unauthenticated API users. This vulnerability affects all Kirby sites that have not disabled the REST API with the 'api' => false option. This issue is fixed in versions 4.9.5 and 5.5.2.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Packagist	getkirby/cms	4.9.5	GHSA-rf2p-vh74-7vvh
Packagist	getkirby/cms	5.5.2	GHSA-rf2p-vh74-7vvh

Affected products (as reported)

Vendor	Product	Versions
getkirby	kirby	< 4.9.5>= 5.0.0, < 5.5.2

Weakness: CWE-497 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://github.com/getkirby/kirby/security/advisories/GHSA-rf2p-vh74-7vvh x_refsource_CONFIRM
https://github.com/getkirby/kirby/commit/469c5a1a2973811591d996bc967eead3565df1f0 x_refsource_MISC
https://github.com/getkirby/kirby/commit/58f819988436b31969078bc4655452dd48546451 x_refsource_MISC