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VulnerabilityPublished

CVE-2026-35306: Oracle Coherence · Improper Access Control

Affects Oracle CoherenceSource CVE Database V5

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Not known to be exploited · CVSS 9.3 Critical.

Data as of 30 Oct 2026, 20:25 UTC

CVSS 3.1 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 28% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Oracle CorporationOracle CoherenceAffected
  • =15.1.1.0.0
Fixed in–
Mavencom.oracle.coherence/coherencepkg:maven/com.oracle.coherence/coherenceOther threatsAffected
  • =15.1.1.0.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Oracle strongly recommends applying the June 2026 Critical Security Patch Update as soon as possible to address this vulnerability. The vendor advisory does not explicitly confirm patch availability for CVE-2026-35306 but advises prompt patching of supported versions. Until patches are applied, risk may be reduced by blocking network protocols required for the attack and removing unnecessary privileges or package access from users. These mitigations may impact application functionality. Customers should monitor Oracle’s advisory for updated patch information and apply official fixes when available.

Description

CVE-2026-35306 is a critical vulnerability in Oracle Coherence 15.1.1.0.0 that allows an unauthenticated attacker with network access via HTTP to compromise the product. Exploitation can lead to unauthorized access to critical data and unauthorized modification (update, insert, delete) of some data accessible through Oracle Coherence. The vulnerability has a CVSS 3.1 base score of 9.3, indicating high confidentiality and integrity impact with no required privileges or user interaction. Oracle has published a Critical Security Patch Update advisory recommending prompt patching and mitigation measures. No explicit patch version is stated in the advisory for this vulnerability, so patch status is not yet confirmed. Mitigation may include blocking network protocols required for the attack and restricting privileges, but these may impact functionality.

References

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