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CVE-2026-94243: A vulnerability in Apache Sling Security Bundle: the ReferrerFilter accepts weaker-than-orgin evidence. Thi

42
This month
HIGH 7.3REMOTEWATCHLISTUPGRADE

CVE-2026-94243 is a high-severity flaw (CVSS 7.3) affecting sling security. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action
  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score7.3 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.3% (top 76%)
CISA exploited listNo
WeaknessCWE-346
Published2026-09-23
Last modified2026-10-06
Publisher (CNA): Apache Software Foundation · Vendor: apache

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Last updated 2026-10-06 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

apache sling security UPGRADE
Affected: < 1.3.2
Fixed in: 1.3.2
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy sling-security || rpm -q sling-security || sling-security --version
2. UPGRADE to 1.3.2 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade sling-security
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade sling-security
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-2026-94243?

sling security: upgrade to 1.3.2. Exact commands for each OS are on this page.

Is CVE-2026-94243 being exploited?

CVE-2026-94243 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-2026-94243 affect?

CVE-2026-94243 affects sling security. Severity is high (CVSS 7.3). 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

How urgent is CVE-2026-94243?

Priority 42/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Related CVEs

References

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