CVE-2025-51306: In Gatling Enterprise versions below 1.25.0, a user logging-out can still use his session token to continue us

Q: How do I fix CVE-2025-51306?

gatling: upgrade to 1.25.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-51306 being exploited?

CVE-2025-51306 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-2025-51306 affect?

CVE-2025-51306 affects gatling. Severity is medium (CVSS 6.5). In Gatling Enterprise versions below 1.25.0, a user logging-out can still use his session token to continue using the application without expiration, due to incorrect session management.

Q: How urgent is CVE-2025-51306?

Priority 42/100. Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 6.5REMOTEUPGRADE

CVE-2025-51306 is a medium-severity flaw (CVSS 6.5) affecting gatling. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Gatling Enterprise versions below 1.25.0, a user logging-out can still use his session token to continue using the application without expiration, due to incorrect session management.

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-1259
Published	2025-08-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: gatling

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

Am I affected?

Timeline

2025-08-06 15:15 UTCPublished CVE record published
2026-06-17 09:35 UTCUpdated Record last modified

gatling gatling UPGRADE

Affected: < 1.25.0

Fixed in: 1.25.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.25.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gatling

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-2025-51306?

gatling: upgrade to 1.25.0. Exact commands for each OS are on this page.

Is CVE-2025-51306 being exploited?

CVE-2025-51306 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-2025-51306 affect?

CVE-2025-51306 affects gatling. Severity is medium (CVSS 6.5). In Gatling Enterprise versions below 1.25.0, a user logging-out can still use his session token to continue using the application without expiration, due to incorrect session management.

How urgent is CVE-2025-51306?

Priority 42/100. Public exploit reference; Remotely exploitable, no login, no user action

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References

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