CVE-2023-6944

mediumpriority · track · 23EPSS 0.006 · 46 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.56% (46th) EPSS

CVSS 5.7 · medium

Is it mine?

6 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

A flaw was found in the Red Hat Developer Hub (RHDH). The catalog-import function leaks GitLab access tokens on the frontend when the base64 encoded GitLab token includes a newline at the end of the string. The sanitized error can display on the frontend, including the raw access token. Upon gaining access to this token and depending on permissions, an attacker could push malicious code to repositories, delete resources in Git, revoke or generate new keys, and sign code illegitimately.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedrhdh/rhdh-hub-rhel9@sha256:34da2c4b49b756d8e1eab4c2974aaf8f0f7eb2360574c51e91126e171fbcc355_amd64 as a component of RHDH 1.1 for RHEL 9redhat_csaf
The RHDH-1.1-RHEL-9 container images provided by this update can be downloaded from the Red Hat Container Registry at registry.access.redhat.com. Installation instructions for your platform are available at Red Hat Container Catalog (see References). Dockerfiles and scripts should be amended either to refer to this new image specifically, or to the latest image generally.
https://access.redhat.com/errata/RHBA-2024:5869
Workaroundrhdh/rhdh-hub-rhel9@sha256:34da2c4b49b756d8e1eab4c2974aaf8f0f7eb2360574c51e91126e171fbcc355_amd64 as a component of RHDH 1.1 for RHEL 9redhat_csaf
To mitigate this vulnerability until you can update to RHDH 1.1, ensure that the base64 encoded GitLab token does not contain a newline character at the end. Removing the newline from the token prevents the unintended disclosure of the access token through the frontend.

cvss

Technical severity, 0–10. One row per scoring source.

7.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.2–7.3

v3.15.7mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.1 · impact 3.6

v3.17.3highAV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.15.7mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:Nsecondary · ENISA EU

v3.15.7mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:Nsecondary · secalert@redhat.com USexploitability 2.1 · impact 3.6

v3.17.3highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Nsecondary · OSV

v3.15.2mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.15.7mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:Nsecondary · Red Hat Product Security US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-209USprimaryCWE-200USCWE-200USCWE-209USCWE-209US

affected products (6)

Products and version ranges known to be affected.

Red Hat RHDH-1.1-RHEL-9< 1.1-107.1724038966enisa_euvdEU
Red Hat Inc. Red Hat Developer Huball versionsfstec_bduRU
linuxfoundation backstage< 1.21.0nvdUScpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
redhat red hat developer hub< 1.21.0nvdUScpe:2.3:a:redhat:red_hat_developer_hub:*:*:*:*:*:*:*:*
npm @backstage/backend-app-api< 0.5.9-next.1osvUSpkg:npm/%40backstage/backend-app-api
rhdh/rhdh-hub-rhel9@sha256:34da2c4b49b756d8e1eab4c2974aaf8f0f7eb2360574c51e91126e171fbcc355_amd64 as a component of RHDH 1.1 for RHEL 9all versionsfixedredhat_csafUS

advisories (2)

Vendor and ecosystem advisories describing this.

RHBA-2024:5869Red Hat Bug Fix Advisory: updated RHDH-1.1-RHEL-9 container images2024-08-26csaf · redhat_csafUS
Updated RHDH-1.1-RHEL-9 container images are now available
GHSA-86rg-pf4c-5grg@backstage/backend-app-api leaks GitLab access tokens2024-01-04ghsa · osvUS
A flaw was found in the Red Hat Developer Hub (RHDH). The catalog-import function leaks GitLab access tokens on the frontend when the base64 encoded GitLab token includes a newline at the end of the string. The sanitized error can display on the frontend, including the raw access token. Upon gaining access to this token and depending on permissions, an attacker could push malicious code to repositories, delete resources in Git, revoke or generate new keys, and sign code illegitimately.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv redhat_csaf NVD CVE.org MITRE

published 2024-01-04modified 2026-06-17

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+937 more

references (10)

External citations — patches, advisories, analysis.

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