CVE-2026-44632: Yamcs is a mission control framework

Q: How do I fix CVE-2026-44632?

yamcs: upgrade to 5.12.7. Exact commands for each OS are on this page.

Q: Is CVE-2026-44632 being exploited?

CVE-2026-44632 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-2026-44632 affect?

CVE-2026-44632 affects yamcs. Severity is critical (CVSS 9.1). Yamcs is a mission control framework. Prior to 5.12.7, a server-side code injection vulnerability existed in the Yamcs algorithm evaluation engine org.yamcs.algorithms.JavaExprAlgorithmExecutionFactory, which dynamically compiled and evalua

Q: How urgent is CVE-2026-44632?

Priority 53/100. Critical severity; Public exploit reference

This month

CRITICAL 9.1UPGRADE

CVE-2026-44632 is a critical-severity flaw (CVSS 9.1) affecting yamcs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Yamcs is a mission control framework. Prior to 5.12.7, a server-side code injection vulnerability existed in the Yamcs algorithm evaluation engine org.yamcs.algorithms.JavaExprAlgorithmExecutionFactory, which dynamically compiled and evaluated user-controlled algorithm text through the Janino compiler without enforcing a secure sandbox, so an authenticated user with the ChangeMissionDatabase privilege could override an existing algorithm's text v

Why this priority

Critical severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	9.1 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-07-16
Last modified	2026-07-17

Publisher (CNA): GitHub, Inc. · Vendor: spaceapplications

Last updated 2026-07-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-16 17:16 UTCPublished CVE record published
2026-07-17 18:38 UTCUpdated Record last modified

spaceapplications yamcs UPGRADE

Affected: < 5.12.7

Fixed in: 5.12.7

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 5.12.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade yamcs

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade yamcs

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-2026-44632?

yamcs: upgrade to 5.12.7. Exact commands for each OS are on this page.

Is CVE-2026-44632 being exploited?

CVE-2026-44632 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-2026-44632 affect?

CVE-2026-44632 affects yamcs. Severity is critical (CVSS 9.1). Yamcs is a mission control framework. Prior to 5.12.7, a server-side code injection vulnerability existed in the Yamcs algorithm evaluation engine org.yamcs.algorithms.JavaExprAlgorithmExecutionFactory, which dynamically compiled and evalua

How urgent is CVE-2026-44632?

Priority 53/100. Critical severity; Public exploit reference

Related CVEs

CVE-2026-46562 CRITICAL 9.8 UPGRADE Yamcs is a mission control framework
CVE-2026-46621 CRITICAL 9.1 UPGRADE Yamcs is a mission control framework
CVE-2026-55548 MEDIUM 4.3 UPGRADE Yamcs is a mission control framework
CVE-2026-44595 MEDIUM 4.3 UPGRADE Yamcs is a mission control framework
CVE-2026-44596 MEDIUM 6.5 UPGRADE Yamcs is a mission control framework

References

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