Free and open · new CVEs checked every 20 minutesStatusRSSOpen dataContact

CVE-2017-10862: jwt-scala 1.2.2 and earlier fails to verify token signatures correctly which may lead to an attacker being abl

36
Routine
MEDIUM 5.3REMOTEUPGRADE

CVE-2017-10862 is a medium-severity flaw (CVSS 5.3) affecting jwt-scala. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

jwt-scala 1.2.2 and earlier fails to verify token signatures correctly which may lead to an attacker being able to pass specially crafted JWT data as a correctly signed token.

Why this priority

  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score5.3 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.6% (top 52%)
CISA exploited listNo
WeaknessCWE-345
Published2017-10-12
Last modified2026-06-17
Publisher (CNA): JPCERT/CC · Vendor: really

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

really jwt-scala UPGRADE
Affected: <= 1.2.2
Fixed in: newer than 1.2.2
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy jwt-scala || rpm -q jwt-scala || jwt-scala --version
2. UPGRADE to newer than 1.2.2 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade jwt-scala
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade jwt-scala
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-2017-10862?

jwt-scala: upgrade to newer than 1.2.2. Exact commands for each OS are on this page.

Is CVE-2017-10862 being exploited?

CVE-2017-10862 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-2017-10862 affect?

CVE-2017-10862 affects jwt-scala. Severity is medium (CVSS 5.3). jwt-scala 1.2.2 and earlier fails to verify token signatures correctly which may lead to an attacker being able to pass specially crafted JWT data as a correctly signed token.

How urgent is CVE-2017-10862?

Priority 36/100. Remotely exploitable, no login, no user action

References

← Back to latest CVEs

Get the weekly exploited-CVE digest by emailThe CVEs being attacked this week and how to fix them. No spam, unsubscribe any time.