How severe is CVE-2026-19636?

CVE-2026-19636 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-19636 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-19636?

CVE-2026-19636 affects Tenable Security Center. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-19636?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-19636 published?

CVE-2026-19636 was published on 2026-08-14 and last updated on 2026-08-19.

CVE-2026-19636

CVE-2026-19636 is a medium-severity vulnerability in Tenable Security Center with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1270.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 6.0
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1270
Affected product: Tenable Security Center
Published: 2026-08-14
Last modified: 2026-08-19

Description

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.

Frequently asked questions

What is CVE-2026-19636?: 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 severe is CVE-2026-19636?: CVE-2026-19636 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-19636 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-19636?: CVE-2026-19636 affects Tenable Security Center. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-19636?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-19636 published?: CVE-2026-19636 was published on 2026-08-14 and last updated on 2026-08-19.

References

https://www.tenable.com/security/tns-2026-22

Affected products (1)

cpe:2.3:a:tenable:security_center:*:*:*:*:*:*:*:*

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