CVE-2022-23496: Yet Another UserAgent Analyzer (Yauaa) is a java library that tries to parse and analyze the useragent string

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HIGH 7.5REMOTEUPGRADE

CVE-2022-23496 is a high-severity flaw (CVSS 7.5) affecting yet another useragent analyzer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Yet Another UserAgent Analyzer (Yauaa) is a java library that tries to parse and analyze the useragent string and extract as many relevant attributes as possible. Applications using the Client Hints analysis feature introduced with 7.0.0 can crash because the Yauaa library throws an ArrayIndexOutOfBoundsException. If uncaught the exception will result in a program crash. Applications that do not use this feature are not affected. Users are advis

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-755
Published	2022-12-08
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: yet another useragent analyzer project

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

Am I affected?

Timeline

2022-12-08 22:15 UTCPublished CVE record published
2026-06-17 04:30 UTCUpdated Record last modified

yet another useragent analyzer project yet another useragent analyzer UPGRADE

Affected: >= 7.0.0 and < 7.9.0

Fixed in: 7.9.0

Safe to downgrade to: a release before 7.0.0

1. Check installed version

apt-cache policy yet-another-useragent-analyzer || rpm -q yet-another-useragent-analyzer || yet-another-useragent-analyzer --version

2. UPGRADE to 7.9.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade yet-another-useragent-analyzer

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade yet-another-useragent-analyzer

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 7.0.0 (Debian / Ubuntu)

apt-cache madison yet-another-useragent-analyzer sudo apt install yet-another-useragent-analyzer=<VERSION_BEFORE_7.0.0> sudo apt-mark hold yet-another-useragent-analyzer

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list yet-another-useragent-analyzer sudo dnf downgrade yet-another-useragent-analyzer-<VERSION_BEFORE_7.0.0> sudo dnf versionlock add yet-another-useragent-analyzer

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-2022-23496?

yet another useragent analyzer: upgrade to 7.9.0. Exact commands for each OS are on this page.

Is CVE-2022-23496 being exploited?

CVE-2022-23496 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-2022-23496 affect?

CVE-2022-23496 affects yet another useragent analyzer. Severity is high (CVSS 7.5). Yet Another UserAgent Analyzer (Yauaa) is a java library that tries to parse and analyze the useragent string and extract as many relevant attributes as possible. Applications using the Client Hints analysis feature introduced with 7.0.0 c

How urgent is CVE-2022-23496?

Priority 45/100. High severity; Remotely exploitable, no login, no user action

Software pages

Java vulnerabilities

References

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