External risk intelligence

Gitea Remember-Me Token Theft Allows Attacker Session Hijacking

CVE advisorySeverity: CRITICAL (CVSS 9.1)

CVE-2026-56750

Gitea is commonly deployed as a self-hosted, internet-facing web application or code hosting platform. As a web-based service intended for collaboration and remote access to repositories, these instances are frequently exposed to the public internet to facilitate developer access, making the login and session management surface reachable in many standard deployments.

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A security vulnerability in Gitea, a code hosting platform, could allow an attacker to steal a user's session token, potentially enabling unauthorized access to repositories and sensitive information. The issue relates to how the platform manages "remember-me" tokens, which are used to keep users logged in.

Session tokens can be stolen.
Protects code and sensitive data.
Confirm Gitea's exposure and relevance.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this by stealing a user's "remember-me" token, which then allows them to hijack an active session without needing valid credentials. This access could lead to the attacker taking full control of the compromised user's account and performing actions on their behalf.

No authentication required to steal token.
Stolen token triggers attacker session.
High risk of account takeover.

Live Threat

Current exploitation, exposure, and threat context

When an attacker steals a valid "Remember-Me" token, they could potentially gain unauthorized access to a user's account without needing their password. This could allow them to impersonate the user and access their stored data or perform actions on their behalf, provided the system is configured to use and properly protect these tokens.

User account data.
Token theft via network exposure.
Unauthorized account access.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability, affecting Gitea's remember-me token functionality, likely requires coordination between application owners responsible for Gitea deployments and potentially infrastructure or platform teams managing the underlying environment. The first practical step is to identify all Gitea instances within the organization, determine their exposure (internal/external), confirm their criticality, and then engage the accountable owner to prioritize remediation.

App owners and platform teams should lead.
Verify Gitea instance exposure and criticality.
Plan remediation based on identified risks.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Gitea?

Gitea is a lightweight, self-hosted platform used by teams to host software source code and collaborate on projects. It functions similarly to popular online repositories, providing web-based tools to manage version control, track issues, and review code. Because it is often deployed on private servers to support developer workflows, organizations rely on it to keep proprietary code and sensitive project documentation centralized.

What does CVE-2026-56750 mean?

This vulnerability is classified as CWE-284, which refers to improper access control. In plain terms, Gitea fails to properly invalidate or secure 'remember-me' tokens—the keys that keep you logged in across browser sessions. If an attacker acquires one of these tokens, the system does not recognize that the session should be terminated or re-verified, effectively allowing the attacker to masquerade as the legitimate user without ever needing a password.

How does an attacker trigger this Gitea vulnerability?

An attacker needs to obtain a valid 'remember-me' token assigned to a user. Once the token is stolen, the attacker can present it to the Gitea instance to hijack the associated session. Importantly, this process does not require the attacker to bypass standard login screens or perform any initial authentication steps, as the system treats the stolen token as proof of a pre-existing, trusted connection.

Do I need to worry if my Gitea instance is internal?

Halo Surface Signal indicates that Gitea is frequently deployed as an internet-facing service to facilitate remote access for developers, which creates a significant attack surface. While internal instances are theoretically harder for external parties to reach, this vulnerability remains relevant if your network allows any unauthorized traffic to reach the login or session management components of the application.

When should I prioritize fixing this for my Gitea installation?

You should begin by locating every Gitea instance running in your environment and verifying its current exposure status. Because this flaw allows for full account takeover without needing credentials, it is a high-priority risk. Engage the application owners immediately to verify if the 'remember-me' feature is enabled and coordinate the application of official updates to secure session handling.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.