CVE-2024-45597: Pluto is a superset of Lua 5.4 with a focus on general-purpose programming

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2024-45597 is a medium-severity flaw (CVSS 5.3) affecting pluto. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Pluto is a superset of Lua 5.4 with a focus on general-purpose programming. Scripts passing user-controlled values to http.request header values are affected. An attacker could use this to send arbitrary requests, potentially leveraging authentication tokens provided in the same headers table.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-93
Published	2024-09-10
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: pluto-lang

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

Am I affected?

Timeline

2024-09-10 22:15 UTCPublished CVE record published
2026-06-17 07:54 UTCUpdated Record last modified

pluto-lang pluto UPGRADE

Affected: >= 0.9.0 and < 0.9.5

Fixed in: 0.9.5

Safe to downgrade to: a release before 0.9.0

1. Check installed version

apt-cache policy pluto || rpm -q pluto || pluto --version

2. UPGRADE to 0.9.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pluto

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pluto

Note

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

3. If no update is available yet, DOWNGRADE to a release before 0.9.0 (Debian / Ubuntu)

apt-cache madison pluto sudo apt install pluto=<VERSION_BEFORE_0.9.0> sudo apt-mark hold pluto

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list pluto sudo dnf downgrade pluto-<VERSION_BEFORE_0.9.0> sudo dnf versionlock add pluto

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2024-45597?

pluto: upgrade to 0.9.5. Exact commands for each OS are on this page.

Is CVE-2024-45597 being exploited?

CVE-2024-45597 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-2024-45597 affect?

CVE-2024-45597 affects pluto. Severity is medium (CVSS 5.3). Pluto is a superset of Lua 5.4 with a focus on general-purpose programming. Scripts passing user-controlled values to http.request header values are affected. An attacker could use this to send arbitrary requests, potentially leveraging aut

How urgent is CVE-2024-45597?

Priority 29/100. Remotely exploitable, no login, no user action

References

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