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PatchSiren cyber security CVE debrief

CVE-2026-94243 Apache Software Foundation CVE debrief

A vulnerability in Apache Sling Security Bundle's ReferrerFilter allows weaker-than-origin evidence, posing a high-severity risk. This issue affects Apache Sling Security Bundle versions before 1.3.2. Users are recommended to upgrade to version 1.3.2, which fixes the issue. The vulnerability's impact and recommended actions are based on the CVE record and NVD vulnerability detail. It is essential for Apache Sling Security users and administrators to assess their exposure and upgrade to version 1.3.2 to mitigate potential risks. The CVE record and NVD vulnerability detail provide information on the vulnerability, its impact, and recommended actions.

Vendor
Apache Software Foundation
Product
Apache Sling Security Bundle
CVSS
HIGH 7.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-23
Original CVE updated
2026-10-06
Advisory published
2026-09-23
Advisory updated
2026-10-06

Who should care

Apache Sling Security users and administrators should assess exposure and upgrade to version 1.3.2 to mitigate potential risks. The vulnerability poses a high-severity risk, and users are recommended to review and update affected systems. Monitoring for potential exploitation attempts is also recommended. The CVE record and NVD vulnerability detail provide information on the vulnerability, its impact, and recommended

Why it matters

CVE-2026-94243 vulnerability in Apache Sling Security Bundle's ReferrerFilter allows weaker-than-origin evidence, posing a high-severity risk. Users are recommended to upgrade to version 1.3.2.

  • Potential security risks due to weaker-than-origin evidence acceptance
  • Need for upgrade to version 1.3.2 to fix the issue
  • Monitoring for potential exploitation attempts recommended

Technical summary

The ReferrerFilter in Apache Sling Security Bundle accepts weaker-than-origin evidence, allowing potential security risks. This issue is addressed in version 1.3.2. The vulnerability affects Apache Sling Security Bundle versions before 1.3.2. Users are recommended to upgrade to version 1.3.2 to fix the issue. The CVE record and NVD vulnerability detail provide information on the vulnerability, its impact, and recommended actions.

Defensive priority

Upgrade to version 1.3.2 to fix the vulnerability.

Recommended defensive actions

  • Upgrade to version 1.3.2
  • Review and update affected systems
  • Monitor for potential exploitation attempts

Evidence notes

The CVE record and NVD vulnerability detail provide information on the vulnerability, its impact, and recommended actions. The evidence is limited to the information provided by the CVE Program and NVD. Defenders should verify the affected scope, severity, and vendor guidance. The vulnerability's impact and recommended actions are based on the CVE record and NVD vulnerability detail. The CVE record was published on 2026-09-23T10:17:08.440Z and has not been modified since then. The NVD

Sources and references

Verified primary and authoritative sources

  • CVE-2026-94243 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-94243

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-94243 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-94243

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.