CVE-2026-33746: Convoy is a KVM server management panel for hosting businesses

Q: How do I fix CVE-2026-33746?

convoy: upgrade to 4.5.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-33746 being exploited?

CVE-2026-33746 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-2026-33746 affect?

CVE-2026-33746 affects convoy. Severity is critical (CVSS 9.8). Convoy is a KVM server management panel for hosting businesses. From version 3.9.0-beta to before version 4.5.1, the JWTService::decode() method did not verify the cryptographic signature of JWT tokens. While the method configured a symmetr

Q: How urgent is CVE-2026-33746?

Priority 45/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2026-33746 is a critical-severity flaw (CVSS 9.8) affecting convoy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Convoy is a KVM server management panel for hosting businesses. From version 3.9.0-beta to before version 4.5.1, the JWTService::decode() method did not verify the cryptographic signature of JWT tokens. While the method configured a symmetric HMAC-SHA256 signer via lcobucci/jwt, it only validated time-based claims (exp, nbf, iat) using the StrictValidAt constraint. The SignedWith constraint was not included in the validation step. This means an a

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-287, CWE-347
Published	2026-04-02
Last modified	2026-07-24

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

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-02 16:16 UTCPublished CVE record published
2026-07-24 21:10 UTCUpdated Record last modified

convoypanel convoy UPGRADE

Affected: < 4.5.1

Fixed in: 4.5.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 4.5.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade convoy

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-2026-33746?

convoy: upgrade to 4.5.1. Exact commands for each OS are on this page.

Is CVE-2026-33746 being exploited?

CVE-2026-33746 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-2026-33746 affect?

CVE-2026-33746 affects convoy. Severity is critical (CVSS 9.8). Convoy is a KVM server management panel for hosting businesses. From version 3.9.0-beta to before version 4.5.1, the JWTService::decode() method did not verify the cryptographic signature of JWT tokens. While the method configured a symmetr

How urgent is CVE-2026-33746?

Priority 45/100. Critical severity; Remotely exploitable, no login, no user action

References

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