How severe is CVE-2026-94243?

CVE-2026-94243 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-94243 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-94243?

CVE-2026-94243 affects Apache Sling Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-94243?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-94243 published?

CVE-2026-94243 was published on 2026-09-23 and last updated on 2026-10-06.

CVE-2026-94243

CVE-2026-94243 is a high-severity vulnerability in Apache Sling Security with a CVSS 3.x base score of 7.3. 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-346.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-346
Affected product: Apache Sling Security
Published: 2026-09-23
Last modified: 2026-10-06

Description

A vulnerability in Apache Sling Security Bundle: the ReferrerFilter accepts weaker-than-orgin evidence. This issue affects Apache Sling Security Bundle: before 1.3.2. Users are recommended to upgrade to version 1.3.2, which fixes the issue.

Frequently asked questions

What is CVE-2026-94243?: A vulnerability in Apache Sling Security Bundle: the ReferrerFilter accepts weaker-than-orgin evidence. This issue affects Apache Sling Security Bundle: before 1.3.2. Users are recommended to upgrade to version 1.3.2, which fixes the issue.
How severe is CVE-2026-94243?: CVE-2026-94243 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-94243 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-94243?: CVE-2026-94243 affects Apache Sling Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-94243?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-94243 published?: CVE-2026-94243 was published on 2026-09-23 and last updated on 2026-10-06.

References

Affected products (1)

cpe:2.3:a:apache:sling_security:*:*:*:*:*:*:*:*

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