Skip to main content

Open Redirect CVE-2026-25779

| EUVDEUVD-2026-41625 MEDIUM
URL Redirection to Untrusted Site (Open Redirect) (CWE-601)
2026-06-17 https://github.com/go-gitea/gitea GHSA-j5r2-4c8j-xc3m
Path Traversal Open Redirect Gitea
6.1
CVSS 3.1 · Vendor: https://github.com/go-gitea/gitea
View

Vulnerability Assessment

Weakness
CWE
CWE-601
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V3 - Web Frontend Security Redirect URL validation
MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Sign in to read
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Jun 18, 2026

Open redirect in Gitea's login flow allows external domain hijacking by bypassing the urlIsRelative validation in modules/httplib/url.go through a combination of directory traversal sequences and a backslash in the redirect_to parameter. All Gitea instances running version 1.25.4 and below are affected; a working proof-of-concept is publicly available in the GitHub Security Advisory. Exploitation enables phishing via trusted Gitea domains, OAuth/SSO authorization code theft, Referer-header leakage of sensitive parameters, and potential cache poisoning — no public exploit identified as confirmed actively exploited (CISA KEV absent).

Affected VersionsENISA

Gitea Open Source Git Server 0 ≤1.25.4

Affected Packages

go code.gitea.io/gitea fix: 1.26.0
go github.com/go-gitea/gitea fix: 1.26.0
euvd gitea_open_source_git_server no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 3 packages in go, euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Sign in to check

Know when Open Redirect gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources
Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

Vendor (https://github.com/go-gitea/gitea) PRIMARY 6.1 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SUSE MEDIUM

Primary rating from Vendor (https://github.com/go-gitea/gitea).

CVSS VectorVendor: https://github.com/go-gitea/gitea

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

1
CVSS changed
Jul 07, 2026 - 18:22 NVD
6.1 (MEDIUM)

DescriptionCVE.org

Details

Despite the validation within urlIsRelative in modules/httplib/url.go, an open redirect is still possible due to usage of directory traversal sequences plus a back-slash in the "redirect_to" parameter.

PoC

When a user uses this URL to login:

https://gitea.com/user/login?redirect_to=/a/../\example.com

They would be redirected to example.com upon a successful login to their gitea account.

Impact

  • Phishing: Attackers can use trusted domain links to redirect victims to credential-harvesting pages
  • OAuth/SSO Token Theft: In authentication flows, authorization codes or tokens may leak via redirect
  • Referer Leakage: Sensitive URL parameters may be exposed to attacker domains via the Referer header
  • Cache Poisoning: In deployments with shared caches, malicious redirects may be cached and served to other users

Threat Intelligence Overview

EPSS Score
0.2%
Top 94% exploitable
Threat Intel
1
1 source
Data Quality
6 sources
Confidence: High
EUVD NVD CVE.org EPSS GHSA Vendor GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

30
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +30
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Path Traversal HIGH

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

More in Open Redirect

View all
CVE-2017-1000117 HIGH POC
8.8 Oct 05

A malicious third-party can give a crafted "ssh://..." URL to an unsuspecting victim, and an attempt to visit the URL ca
CVE-2024-52875 HIGH POC
8.8 Jan 31

GFI Kerio Control versions 9.2.5 through 9.4.5 contain an HTTP response splitting vulnerability in the dest parameter of
CVE-2016-5385 HIGH POC
8.1 Jul 19

PHP through 7.0.8 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect
CVE-2013-2248 MEDIUM POC
5.8 Jul 20

Multiple open redirect vulnerabilities in Apache Struts 2.0.0 through 2.3.15 allow remote attackers to redirect users to
CVE-2018-11784 MEDIUM POC
4.3 Oct 04

When the default servlet in Apache Tomcat versions 9.0.0.M1 to 9.0.11, 8.5.0 to 8.5.33 and 7.0.23 to 7.0.90 returned a r
CVE-2012-6499 MEDIUM POC
5.8 Jan 12

Open redirect vulnerability in age-verification.php in the Age Verification plugin 0.4 and earlier for WordPress allows

CVE-2015-2863 MEDIUM POC
4.3 Jul 20

Open redirect vulnerability in Kaseya Virtual System Administrator (VSA) 7.x before 7.0.0.29, 8.x before 8.0.0.18, 9.0 b
CVE-2017-3528 MEDIUM POC
5.4 Apr 24

Vulnerability in the Oracle Applications Framework component of Oracle E-Business Suite (subcomponent: Popup windows (li
CVE-2012-0518 MEDIUM
4.7 Oct 16

Unspecified vulnerability in the Oracle Application Server Single Sign-On component in Oracle Fusion Middleware 10.1.4.3
CVE-2024-21641 MEDIUM POC
6.5 Jan 05

Flarum is open source discussion platform software. Rated medium severity (CVSS 6.5), this vulnerability is remotely exp
CVE-2015-5354 MEDIUM POC
5.8 Jul 01

Open redirect vulnerability in Novius OS 5.0.1 (Elche) allows remote attackers to redirect users to arbitrary web sites

CVE-2015-5461 MEDIUM POC
6.4 Jul 08

Open redirect vulnerability in the Redirect function in stageshow_redirect.php in the StageShow plugin before 5.0.9 for

Same weakness CWE-601 – URL Redirection to Untrusted Site (Open Redirect)

View all
CVE-2024-22891 CRITICAL POC
9.8

Same technique Path Traversal

View all
CVE-2019-19781 CRITICAL POC
9.8
CVE-2021-21972 CRITICAL POC
9.8
CVE-2021-40444 HIGH POC
8.8
CVE-2022-41352 CRITICAL POC
9.8
CVE-2021-27065 HIGH POC
7.8
CVE-2018-20250 HIGH POC
7.8
CVE-2022-37042 CRITICAL POC
9.8
CVE-2025-64446 CRITICAL POC
9.8

Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise Server 16.1 Affected
SUSE Linux Enterprise Server for SAP applications 16.1 Affected
SUSE Linux Enterprise Module for Package Hub 15 SP5 Affected
SUSE Linux Enterprise Module for Package Hub 15 SP6 Affected
openSUSE Leap 15.5 Affected

References

Advisories & patches
ADVISORY https://github.com/go-gitea/gitea/security/advisories/GHSA-j5r2-4c8j-xc3m REF https://blog.gitea.com/release-of-1.25.5/ REF https://github.com/advisories/GHSA-j5r2-4c8j-xc3m REF https://github.com/go-gitea/gitea/pull/36660 REF https://github.com/go-gitea/gitea/pull/36716 REF https://github.com/go-gitea/gitea/releases/tag/v1.25.5

Search Externally

GitHub PoC Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy