CVE-2022-21949

Multiple XXE vulnerabilities in OBS

8.8 HighFix available

A Improper Restriction of XML External Entity Reference vulnerability in SUSE Open Build Service allows remote attackers to reference external entities in certain operations. This can be used to gain information from the server that can be abused to escalate to Admin privileges on OBS. This issue affects: SUSE Open Build Service Open Build Service versions prior to 2.10.13.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.86%Up 0.8 points since May 3, 2022

What each source reports

CVE List Score used 8.8

Multiple XXE vulnerabilities in OBS

Record: CVE-2022-21949
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-611
Updated: 2026-11-02

EUVDEUVD-2022-27105 8.8

Record: EUVD-2022-27105
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-3wrh-hc8c-4jpw 8.8

A Improper Restriction of XML External Entity Reference vulnerability in SUSE Open Build Service...

Record: GHSA-3wrh-hc8c-4jpw
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-611
Updated: 2026-11-02

NVD 8.8

Record: CVE-2022-21949
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 9.0 HighAV:N/AC:L/Au:S/C:C/I:C/A:C
Weakness: CWE-611
Updated: 2026-11-02

OSV 8.8

Multiple XXE vulnerabilities in OBS

Record: CVE-2022-21949
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-611
Updated: 2026-11-02

OSVDEBIAN-CVE-2022-21949 8.8

Record: DEBIAN-CVE-2022-21949
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-03

OSVOESA-2022-1674 8.8

obs-server security update

The Open Build Service (OBS) backend is used to store all sources and binaries.It also calculates the need for new build jobs and distributes it.

Security Fix(es):

Record: OESA-2022-1674
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2022-21949 8.8

Record: UBUNTU-CVE-2022-21949
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`ruby-xmlhash` Debian:12	before 1.3.6-3.1	1.3.6-3.1
`obs-server` openEuler:20.03-LTS-SP1	before 2.10.11-3.oe1	2.10.11-3.oe1
`obs-server` openEuler:20.03-LTS-SP3	before 2.10.11-3.oe1	2.10.11-3.oe1
`ruby-xmlhash` Ubuntu:16.04:LTS	All versions, plus listed versions 1.3.6-11.3.6-21.3.6-2build11.3.6-2build2	None known
`ruby-xmlhash` Ubuntu:18.04:LTS	All versions, plus listed versions 1.3.6-2build21.3.6-2build31.3.6-2build4	None known
`ruby-xmlhash` Ubuntu:20.04:LTS	All versions, plus listed versions 1.3.6-2build41.3.6-2build5	None known
`ruby-xmlhash` Ubuntu:22.04:LTS	All versions, plus listed versions 1.3.6-2build51.3.6-2build61.3.6-2build7	None known
`ruby-xmlhash` Ubuntu:24.04:LTS	All versions, plus listed versions 1.3.6-3.11.3.6-3.1build11.3.6-3.1build2	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-21949 is a high vulnerability (CVSS 8.8) in Opensuse Open Build Service, published May 3, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.86%, the 79th percentile. Fixed in ruby-xmlhash 1.3.6-3.1.