CVE-2023-0508

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') in GitLab

MEDIUM

4.3

CVSS Score

Published: June 7, 2023 at 12:00 AM UTC

Updated: June 17, 2026 at 05:25 AM UTC

1 product affected across 1 vendorGitLab

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Severity

MEDIUM4.3

Exploit prediction

EPSS 0.8%

SSVC

PoC

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 15.4 before 15.10.8, all versions starting from 15.11 before 15.11.7, all versions starting from 16.0 before 16.0.2. Open redirection was possible via HTTP response splitting in the NPM package API.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

GitLab · GitLabmaven

95%

v < 15.10.8v < 15.11.7v < 16.0.215.11.0 ≤ v < 15.11.715.4.0 ≤ v < 15.10.816.0.0 ≤ v < 16.0.2

Affected range stops below 15.10.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.11.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.0.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0508.json

References (3)

Vendor Advisory

Source: [email protected]

https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0508.json

Broken Link

Source: [email protected]

https://gitlab.com/gitlab-org/gitlab/-/issues/389328

Permissions RequiredThird Party Advisory

Source: [email protected]

https://hackerone.com/reports/1842314

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: NONE
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-113NVD-CWE-Other

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