CVE-2024-2177Public exploitNetwork attack vector

OAuth authorization hijacking via fragment-focused approval button

Published Jul 9, 2024 · Updated Sep 17, 2024

Cross-window forgery in GitLab CE/EE 16.3 through 16.11.4 allows remote attackers to hijack OAuth authorization via a crafted URL. The OAuth approval button exposes an HTML id, so a URL fragment focuses it in a tiny off-screen window and transfers an Enter keystroke from attacker-controlled content to submit approval; 17.0 through 17.0.2 and 17.1.0 are also affected. Exploitation requires a signed-in victim to interact with the crafted content and grants the attacker's application API access under the victim's approved OAuth scopes.

CVSS severity6.8
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-window forgery in GitLab CE/EE 16.3 through 16.11.4 allows remote attackers to hijack OAuth authorization via a crafted URL. The OAuth approval button exposes an HTML id, so a URL fragment focuses it in a tiny off-screen window and transfers an Enter keystroke from attacker-controlled content to submit approval; 17.0 through 17.0.2 and 17.1.0 are also affected. Exploitation requires a signed-in victim to interact with the crafted content and grants the attacker's application API access under the victim's approved OAuth scopes.

The record

CVE
CVE-2024-2177
Published
Jul 9, 2024
Updated
Sep 17, 2024
Vendor
GitLab
Product
GitLab
Classifications
CWE-1021, CAPEC-103, T1528
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=16.3 <16.11.5
  2. Affected versionversion=17.0 <17.0.3
  3. Affected versionversion=17.1 <17.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GitLab · GitLabversion=16.3 <16.11.5; version=17.0 <17.0.3; version=17.1 <17.1.1

Published CVSS scores

6.8NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
6.8GitLabCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1021Improper Restriction of Rendered UI Layers or Frames
CAPEC-103Clickjacking
T1528Steal Application Access Token

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo