SB2026070161 - Multiple vulnerabilities in Gitea

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2026070161

SB2026070161 - Multiple vulnerabilities in Gitea

Published: July 1, 2026

Security Bulletin ID SB2026070161
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-58418)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input in repository migration. A remote user can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.


2) Improper Authorization (CVE-ID: CVE-2026-58424)

CWE-ID: CWE-285 - Improper Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green


The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to insufficient authorization controls in the Gitea Actions. A remote user can execute arbitrary code on the target system.


3) Improper Authentication (CVE-ID: CVE-2026-58423)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in SSH LFS sub-verb handling. A remote user can bypass authentication process and gain read access to private repositories.


4) Incorrect Regular Expression (CVE-ID: CVE-2026-58421)

CWE-ID: CWE-185 - Incorrect Regular Expression

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation when processing regular expressions in the CODEOWNERS feature. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.


5) Information disclosure (CVE-ID: CVE-2026-58419)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Notification API. A remote user can gain unauthorized access to sensitive information on the system.


Remediation

Install update from vendor's website.

References