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VulnerabilityPublished

CVE-2026-34312: Oracle Database Server · Improper Access Control

Affects Oracle Database ServerSource CVE Database V5

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Not known to be exploited · CVSS 2.4 Low.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
2.4Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Apr 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 Database ServerAffected
  • >=19.3 <=19.30
Fixed in–
Mavencom.oracle/database-serverpkg:maven/com.oracle/database-serverOther threatsAffected
  • =19.3
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's April 2026 Critical Patch Update advisory includes this vulnerability among many others but does not explicitly confirm patch availability or remediation for CVE-2026-34312. Customers are strongly advised to remain on actively supported Oracle Database versions and apply the latest Critical Patch Updates promptly. Since no specific patch or workaround is detailed, organizations should monitor Oracle's security advisories for updates.

Description

CVE-2026-34312 is a low-severity vulnerability in Oracle Database Server versions 19.3 to 19.30. It allows a high privileged attacker with Row Access Method privilege and network access via multiple protocols to gain unauthorized read access to a subset of database data. Exploitation requires human interaction from a user other than the attacker. The vulnerability impacts confidentiality but does not affect integrity or availability. Oracle has included this vulnerability in its April 2026 Critical Patch Update advisory but has not explicitly confirmed patch availability or remediation status for this specific issue. Customers are strongly advised to apply Oracle Critical Patch Updates promptly to mitigate such vulnerabilities.

References

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