How severe is CVE-2026-66760?

CVE-2026-66760 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2026-66760 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-66760?

CVE-2026-66760 affects Sap Approuter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-66760?

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

When was CVE-2026-66760 published?

CVE-2026-66760 was published on 2026-08-11 and last updated on 2026-09-08.

CVE-2026-66760

CVE-2026-66760 is a medium-severity vulnerability in Sap Approuter with a CVSS 3.x base score of 6.4. 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-295.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Sap Approuter
Published: 2026-08-11
Last modified: 2026-09-08

Description

SAP Approuter does not correctly validate client certificates in certain callback flows. An attacker with low privileges, holding a certificate from the same trusted authority with matching subject values, could bypass the identity check. This complexity makes the attack difficult to execute. Successful exploitation could allow impersonation of a trusted internal component, resulting in a high impact on integrity and a low impact on confidentiality and availability.

Frequently asked questions

What is CVE-2026-66760?: SAP Approuter does not correctly validate client certificates in certain callback flows. An attacker with low privileges, holding a certificate from the same trusted authority with matching subject values, could bypass the identity check. This complexity makes the attack difficult to execute. Successful exploitation could allow impersonation of a trusted internal component, resulting in a high impact on integrity and a low impact on confidentiality and availability.
How severe is CVE-2026-66760?: CVE-2026-66760 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2026-66760 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-66760?: CVE-2026-66760 affects Sap Approuter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-66760?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-66760 published?: CVE-2026-66760 was published on 2026-08-11 and last updated on 2026-09-08.

References

Affected products (1)

cpe:2.3:a:sap:approuter:*:*:*:*:*:node.js:*:*

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