TI-2020-06491 Aliases CVE-2020-8021 GHSA-4635-6x6c-c5r7

unauthorized read access to files where sourceaccess is disabled via a crafted _service file in Open Build Service

LOW 27CWE-269Published 2020-05-19 · Updated 2024-09-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Privilege escalation
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.

Summary

a Improper Access Control vulnerability in of Open Build Service allows remote attackers to read files of an OBS package where the sourceaccess/access is disabled This issue affects: Open Build Service versions prior to 2.10.5.

Why it matters now

EPSS 0.01299 70th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed Open Build Service (openSUSE): 2.10.5

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
openSUSE	Open Build Service	Open Build Service to before 2.10.5	2.10.5	Patch available	CNA

Open Build Service VendoropenSUSE Affected Open Build Service to before 2.10.5 Fixed in 2.10.5 Patch available CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:opensuse:open_build_service::::::::	before 2.10.5	Vulnerable	openSUSE
cpe:2.3:o:debian:debian_linux:9.0:::::::*	9.0	Vulnerable	Debian

cpe:2.3:a:opensuse:open_build_service:*:*:*:*:*:*:*:* Versions before 2.10.5 Vulnerable ·openSUSE
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian

Remediation

Fix · CNA Open Build Service (openSUSE) Fixed in 2.10.5

Timeline

2026-10-02 Threatist record created from CVE-2020-8021
2026-10-03 Alias added: GHSA-4635-6x6c-c5r7

References

Exploit 1

https://bugzilla.suse.com/show_bug.cgi?id=1171649

Advisory 1

[debian-lts-announce] 20210203 [SECURITY] [DLA 2545-1] open-build-service security update

TI-2014-00569 sed command injection CVSS 3.0CRITICAL 9.8
TI-2011-03685 open build service allows anyone to upload rpms CVSS 3.0CRITICAL 9.8
TI-2022-06311 Multiple XXE vulnerabilities in OBS CVSS 3.1HIGH 8.8
TI-2011-02808 openbuildservice webui code injection CVSS 3.0HIGH 8.8
TI-2021-14898 login-proxy sends password to attacker-provided domain CVSS 3.1HIGH 8.8
TI-2014-00570 CSRF protection incorrectly disabled CVSS 3.0HIGH 8.8

See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences