CVE-2026-3269: A flaw has been found in psi-probe PSI Probe up to 5.3.0

Q: How do I fix CVE-2026-3269?

psi probe: upgrade to newer than 5.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-3269 being exploited?

CVE-2026-3269 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-2026-3269 affect?

CVE-2026-3269 affects psi probe. Severity is medium (CVSS 4.3). A flaw has been found in psi-probe PSI Probe up to 5.3.0. The impacted element is the function handleRequestInternal of the file psi-probe-core/src/main/java/psiprobe/controllers/sessions/ExpireSessionsController.java of the component Sessi

Q: How urgent is CVE-2026-3269?

Priority 33/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2026-3269 is a medium-severity flaw (CVSS 4.3) affecting psi probe. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw has been found in psi-probe PSI Probe up to 5.3.0. The impacted element is the function handleRequestInternal of the file psi-probe-core/src/main/java/psiprobe/controllers/sessions/ExpireSessionsController.java of the component Session Handler. Executing a manipulation can lead to denial of service. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-404
Published	2026-02-27
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: psi-probe

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

Am I affected?

Timeline

2026-02-27 00:16 UTCPublished CVE record published
2026-06-17 10:43 UTCUpdated Record last modified

psi-probe psi probe UPGRADE

Affected: <= 5.3.0

Fixed in: newer than 5.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy psi-probe || rpm -q psi-probe || psi-probe --version

2. UPGRADE to newer than 5.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade psi-probe

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade psi-probe

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-2026-3269?

psi probe: upgrade to newer than 5.3.0. Exact commands for each OS are on this page.

Is CVE-2026-3269 being exploited?

CVE-2026-3269 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-2026-3269 affect?

CVE-2026-3269 affects psi probe. Severity is medium (CVSS 4.3). A flaw has been found in psi-probe PSI Probe up to 5.3.0. The impacted element is the function handleRequestInternal of the file psi-probe-core/src/main/java/psiprobe/controllers/sessions/ExpireSessionsController.java of the component Sessi

How urgent is CVE-2026-3269?

Priority 33/100. Public exploit reference

Software pages

Java vulnerabilities

Related CVEs

CVE-2026-3270 MEDIUM 6.3 UPGRADE A vulnerability has been found in psi-probe PSI Probe up to 5.3.0
CVE-2026-3268 MEDIUM 5.4 UPGRADE A vulnerability was detected in psi-probe PSI Probe up to 5.3.0

References

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