Widely-used enterprise middleware (Oracle Coherence) with unauthenticated takeover and critical impact.
CVE-2026-35307
Unauthenticated HTTP takeover of Oracle Coherence core.
Is CVE-2026-35307 being exploited?
Not confirmed. CVE-2026-35307 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.47% probability of exploitation in the next 30 days.
How severe is CVE-2026-35307?
CVE-2026-35307 is rated Low with a CVSS score of 3.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-35307?
Yes. A fix has been recorded for CVE-2026-35307. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-35307 affect?
CVE-2026-35307 affects Oracle Coherence 12.2.1.4.0, Oracle Coherence 14.1.1.0.0, Oracle Coherence 14.1.2.0.0, Oracle Coherence 15.1.1.0.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-35307?
Apply Oracle patch immediately
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauth attacker over HTTP can takeover Coherence, gaining full control and disrupting services.
Immediate action required
- affected12.2.1.4.0
- affected14.1.1.0.0
- affected14.1.2.0.0
- affected15.1.1.0.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.