CVE-2024-36120: javascript-deobfuscator removes common JavaScript obfuscation techniques

Q: How do I fix CVE-2024-36120?

javascript deobfuscator: upgrade to 1.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2024-36120 being exploited?

CVE-2024-36120 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-36120 affect?

CVE-2024-36120 affects javascript deobfuscator. Severity is high (CVSS 8.1). javascript-deobfuscator removes common JavaScript obfuscation techniques. In affected versions crafted payloads targeting expression simplification can lead to code execution. This issue has been patched in version 1.1.0. Users are advised

Routine

HIGH 8.1UPGRADE

CVE-2024-36120 is a high-severity flaw (CVSS 8.1) affecting javascript deobfuscator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

javascript-deobfuscator removes common JavaScript obfuscation techniques. In affected versions crafted payloads targeting expression simplification can lead to code execution. This issue has been patched in version 1.1.0. Users are advised to update. Users unable to upgrade should disable the expression simplification feature.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Local
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 71%)
CISA exploited list	No
Weakness	CWE-94
Published	2024-05-31
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: deobfuscate

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-05-31 17:15 UTCPublished CVE record published
2026-06-17 07:36 UTCUpdated Record last modified

deobfuscate javascript deobfuscator UPGRADE

Affected: < 1.1.0

Fixed in: 1.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy javascript-deobfuscator || rpm -q javascript-deobfuscator || javascript-deobfuscator --version

2. UPGRADE to 1.1.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade javascript-deobfuscator

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade javascript-deobfuscator

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-36120?

javascript deobfuscator: upgrade to 1.1.0. Exact commands for each OS are on this page.

Is CVE-2024-36120 being exploited?

CVE-2024-36120 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-36120 affect?

CVE-2024-36120 affects javascript deobfuscator. Severity is high (CVSS 8.1). javascript-deobfuscator removes common JavaScript obfuscation techniques. In affected versions crafted payloads targeting expression simplification can lead to code execution. This issue has been patched in version 1.1.0. Users are advised

How urgent is CVE-2024-36120?

Priority 35/100. High severity

References

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