CVE-2026-1456

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.7 before 18.7.4, and 18.8 before 18.8.4 that could have allowed an unauthenticated user to cause denial of service through CPU exhaustion by submitting specially crafted markdown files that trigger exponential processing in markdown preview.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-770

Affected software

No affected versions have been published.

Timeline

Published: Feb 11, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-1456010.0The teddy-bear-customize-addon WordPress plugin through 1.0.5 does not properly validate uploaded files, relying on a client-supplied conten CVE-2026-145616.5The Authora : Easy login with mobile number WordPress plugin before 1.7.7 does not keep its one-time login code confidential, returning the CVE-2026-145625.3The teddy-bear-customize-addon WordPress plugin through 1.0.5 does not perform any authorization or ownership checks before returning WooCom CVE-2026-145639.8The advanced-customized-prompts WordPress plugin through 1.0.1 does not verify the password before issuing an authenticated session for a su CVE-2026-145649.0Insufficiently Protected Credentials vulnerability in Innotim Software Telecommunications and Consulting Trade Ltd. Co. Logsign SIEM allows CVE-2026-145655.4The advanced-customized-prompts WordPress plugin through 1.0.1 does not perform any capability, ownership, or nonce check before saving popu CVE-2026-145664.3The advanced-customized-prompts WordPress plugin through 1.0.1 does not perform any capability, ownership, or nonce check before updating Wo CVE-2026-145675.3The User Frontend WordPress plugin before 4.3.10 does not restrict access to its user directory search endpoint, allowing unauthenticated a CVE-2026-145686.5The User Frontend: AI Powered Frontend Post Submission, User Directory, User Profile, Membership & User Registration WordPress plugin before CVE-2026-14578.8An authenticated buffer handling flaw in TP-Link VIGI C385 V1 Web API lacking input sanitization, may allow memory corruption leading to rem CVE-2026-145707.5Crypt::DSA versions before 1.22 for Perl draw the DSA signing nonce and private key from a biased random generator, leading to private-key r CVE-2026-145726.4The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Page B