CVE-2022-45326: An XML external entity (XXE) injection vulnerability in Kwoksys Kwok Information Server before v2.9.5.SP31 all

Q: How do I fix CVE-2022-45326?

information server: upgrade to 2.9.5. Exact commands for each OS are on this page.

Q: Is CVE-2022-45326 being exploited?

CVE-2022-45326 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-2022-45326 affect?

CVE-2022-45326 affects information server. Severity is medium (CVSS 4.9). An XML external entity (XXE) injection vulnerability in Kwoksys Kwok Information Server before v2.9.5.SP31 allows remote authenticated users to conduct server-side request forgery (SSRF) attacks.

Q: How urgent is CVE-2022-45326?

Priority 39/100. Public exploit reference

Routine

MEDIUM 4.9UPGRADE

CVE-2022-45326 is a medium-severity flaw (CVSS 4.9) affecting information server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An XML external entity (XXE) injection vulnerability in Kwoksys Kwok Information Server before v2.9.5.SP31 allows remote authenticated users to conduct server-side request forgery (SSRF) attacks.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.9 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-611
Published	2022-12-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: kwoksys

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

Am I affected?

Timeline

2022-12-06 17:15 UTCPublished CVE record published
2026-06-17 05:09 UTCUpdated Record last modified

kwoksys information server UPGRADE

Affected: < 2.9.5 · 2.9.5 sp23 · 2.9.5 sp25 · 2.9.5 sp26 · 2.9.5 sp29 · 2.9.5 sp30

Fixed in: 2.9.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy information-server || rpm -q information-server || information-server --version

2. UPGRADE to 2.9.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade information-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade information-server

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-2022-45326?

information server: upgrade to 2.9.5. Exact commands for each OS are on this page.

Is CVE-2022-45326 being exploited?

CVE-2022-45326 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-2022-45326 affect?

CVE-2022-45326 affects information server. Severity is medium (CVSS 4.9). An XML external entity (XXE) injection vulnerability in Kwoksys Kwok Information Server before v2.9.5.SP31 allows remote authenticated users to conduct server-side request forgery (SSRF) attacks.

How urgent is CVE-2022-45326?

Priority 39/100. Public exploit reference

References

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