How serious is CVE-2026-27701?

This vulnerability has a CVSS score of 8.8 out of 10, classified as HIGH severity. No public exploit code has been identified yet.

Which products are affected by CVE-2026-27701?

Check the official CVE details for a complete list of affected products and versions.

How do I fix CVE-2026-27701?

To remediate CVE-2026-27701, check for security patches from the vendor. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2026-27701

High

|8.8

No Exploit

Plain English Summary

AI-powered analysis for quick understanding

An attacker can exploit this vulnerability to inject malicious JavaScript into a GitHub Actions workflow by crafting a pull request title, which could allow them to steal sensitive information from the repository or perform unauthorized actions using the CI bot's permissions. This requires the attacker to create a pull request with a specially designed title, making it a targeted attack on the repository.

Technical Description

LiveCode is an open-source, client-side code playground. Prior to commit e151c64c2bd80d2d53ac1333f1df9429fe6a1a11, LiveCode's `i18n-update-pull` GitHub Actions workflow is vulnerable to JavaScript injection. The title of the Pull Request associated with the triggering issue comment is interpolated directly into a `actions/github-script` JavaScript block using a GitHub Actions template expression. An attacker who opens a PR with a crafted title can inject arbitrary JavaScript that executes with the privileges of the CI bot token (`CI_APP_ID` / `CI_APP_PRIVATE_KEY`), enabling exfiltration of repository secrets and unauthorized GitHub API operations. Commit e151c64c2bd80d2d53ac1333f1df9429fe6a1a11 fixes the issue.

CVSS Vector Analysis

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactHigh

ScopeChanged

Vector String

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$4,789($1K-$5K)

Vendor Response

Grade APatched in 2 days

Quick Information

Published

Feb 25, 2026

about 1 month ago

Last Modified

Feb 27, 2026

about 1 month ago