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CVE-2025-22868: An attacker can pass a malicious malformed token which causes unexpected memory to be consumed during parsing.

46
This month
HIGH 7.5REMOTEUPGRADE

CVE-2025-22868 is a high-severity flaw (CVSS 7.5) affecting jws. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An attacker can pass a malicious malformed token which causes unexpected memory to be consumed during parsing.

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score7.5 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.9% (top 41%)
CISA exploited listNo
WeaknessCWE-1286
Published2025-02-26
Last modified2026-06-17
Publisher (CNA): Go Project · Vendor: go

Share: LinkedIn · X · Reddit

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

Am I affected?

Timeline

go jws UPGRADE
Affected: < 0.27.0
Fixed in: 0.27.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy jws || rpm -q jws || jws --version
2. UPGRADE to 0.27.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade jws
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade jws
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-2025-22868?

jws: upgrade to 0.27.0. Exact commands for each OS are on this page.

Is CVE-2025-22868 being exploited?

CVE-2025-22868 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-2025-22868 affect?

CVE-2025-22868 affects jws. Severity is high (CVSS 7.5). An attacker can pass a malicious malformed token which causes unexpected memory to be consumed during parsing.

How urgent is CVE-2025-22868?

Priority 46/100. High severity; Remotely exploitable, no login, no user action

References

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