gitroomhq postiz-app pr-docker-build.yml code injection

CVSS Meta Temp Score
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CTI Interest Score
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8.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in gitroomhq postiz-app and classified as critical. This impacts an unknown function of the file .github/workflows/pr-docker-build.yml. The manipulation leads to code injection. This vulnerability is listed as CVE-2026-42298. The attack may be initiated remotely. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in gitroomhq postiz-app (the affected version unknown). It has been rated as critical. This issue affects an unknown part of the file .github/workflows/pr-docker-build.yml. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Postiz is an AI social media scheduling tool. Prior to commit da44801, a "Pwn Request" vulnerability in the Build and Publish PR Docker Image workflow (.github/workflows/pr-docker-build.yml) allows any unauthenticated user to execute arbitrary code during the Docker build process and exfiltrate a highly privileged GITHUB_TOKEN (write-all permissions). This can be achieved simply by opening a Pull Request from a fork with a maliciously modified Dockerfile.dev. This issue has been patched via commit da44801.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-42298 since 04/26/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

Applying the patch da448012dd87e94944cbe83a38e7fd023269ec46 is able to eliminate this problem. The bugfix is ready for download at github.com.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CNA Base Score: 10.0
CNA Vector (GitHub_M): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: da448012dd87e94944cbe83a38e7fd023269ec46

Timelineinfo

04/26/2026 CVE reserved
05/09/2026 +13 days Advisory disclosed
05/09/2026 +0 days VulDB entry created
06/04/2026 +26 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-v975-9h5p-xhm4
Status: Confirmed

CVE: CVE-2026-42298 (🔒)
GCVE (CVE): GCVE-0-2026-42298
GCVE (VulDB): GCVE-100-362393

Entryinfo

Created: 05/09/2026 06:59
Updated: 06/04/2026 14:17
Changes: 05/09/2026 06:59 (65), 06/04/2026 14:17 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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