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CVE-2026-19636: An issue was identified in which CSRF tokens were generated using a predictable method, potentially reducing t

23
Routine
MEDIUM 5.3UPGRADE

CVE-2026-19636 is a medium-severity flaw (CVSS 5.3) affecting security center. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was identified in which CSRF tokens were generated using a predictable method, potentially reducing their effectiveness as a security control. This has been addressed by improving the randomness and entropy of token generation.

Why this priority

  • No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score5.3 (Medium)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededNone
User interactionRequired
EPSS exploit chance0.3% (top 83%)
CISA exploited listNo
WeaknessCWE-1270
Published2026-08-14
Last modified2026-08-19
Publisher (CNA): Tenable Network Security, Inc. · Vendor: tenable

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Last updated 2026-08-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

tenable security center UPGRADE
Affected: < 6.9.0
Fixed in: 6.9.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy security-center || rpm -q security-center || security-center --version
2. UPGRADE to 6.9.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade security-center
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade security-center
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-2026-19636?

security center: upgrade to 6.9.0. Exact commands for each OS are on this page.

Is CVE-2026-19636 being exploited?

CVE-2026-19636 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-2026-19636 affect?

CVE-2026-19636 affects security center. Severity is medium (CVSS 5.3). An issue was identified in which CSRF tokens were generated using a predictable method, potentially reducing their effectiveness as a security control. This has been addressed by improving the randomness and entropy of token generation.

How urgent is CVE-2026-19636?

Priority 23/100. No elevated risk signals yet.

Related CVEs

References

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