CVE-2025-12383: In Eclipse Jersey versions 2.45, 3.0.16, 3.1.9 a race condition can cause ignoring of critical SSL configurati

Routine

HIGH 7.4REMOTEDOWNGRADE

CVE-2025-12383 is a high-severity flaw (CVSS 7.4) affecting jersey. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Eclipse Jersey versions 2.45, 3.0.16, 3.1.9 a race condition can cause ignoring of critical SSL configurations - such as mutual authentication, custom key/trust stores, and other security settings. This issue may result in SSLHandshakeException under normal circumstances, but under certain conditions, it could lead to unauthorized trust in insecure servers (see PoC)

Why this priority

High severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.4 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 78%)
CISA exploited list	No
Weakness	CWE-362
Published	2025-11-18
Last modified	2026-10-18

Publisher (CNA): Eclipse Foundation · Vendor: eclipse

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-11-18 16:15 UTCPublished CVE record published
2026-10-18 20:10 UTCUpdated Record last modified

eclipse jersey DOWNGRADE

Affected: 2.45 · 3.0.16 · 3.1.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.45

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.45 (Debian / Ubuntu)

apt-cache madison jersey sudo apt install jersey=<VERSION_BEFORE_2.45> sudo apt-mark hold jersey

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list jersey sudo dnf downgrade jersey-<VERSION_BEFORE_2.45> sudo dnf versionlock add jersey

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-2025-12383?

jersey: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-12383 being exploited?

CVE-2025-12383 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-2025-12383 affect?

CVE-2025-12383 affects jersey. Severity is high (CVSS 7.4). In Eclipse Jersey versions 2.45, 3.0.16, 3.1.9 a race condition can cause ignoring of critical SSL configurations - such as mutual authentication, custom key/trust stores, and other security settings. This issue may result in SSLHandshakeEx

How urgent is CVE-2025-12383?

Priority 37/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-28168 MEDIUM 6.2 UPGRADE DOWNGRADE Eclipse Jersey 2.28 to 2.33 and Eclipse Jersey 3.0.0 to 3.0.1 contains a local information disclosure vulnerab
CVE-2014-3643 HIGH 7.5 MITIGATE jersey: XXE via parameter entities not disabled by the jersey SAX parser

References

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