CVE-2026-83043: portal
Affects portalSource GCVE Database
Not known to be exploited · CVSS 9.6 Critical.
Data as of 31 Oct 2026, 08:20 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
Mavencom.oracle.webcenter/portalpkg:maven/com.oracle.webcenter/portalOther threats | Affected
| 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 has released security patches for this vulnerability as part of the September 2026 Critical Security Patch Update. Customers should apply the relevant patches for Oracle WebCenter Portal versions 12.2.1.4.0 and 14.1.2.0.0 promptly. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay to mitigate this and other vulnerabilities. No alternative mitigations or workarounds are specified in the advisory.
Description
A critical vulnerability (CVE-2026-83043) exists in Oracle WebCenter Portal (component: Composer) versions 12.2.1.4.0 and 14.1.2.0.0. This vulnerability allows an unauthenticated attacker with network access via HTTP to compromise the product, requiring user interaction from a third party. Successful exploitation can lead to full takeover of Oracle WebCenter Portal and may impact additional products. The vulnerability has a CVSS 3.1 base score of 9.6, indicating high confidentiality, integrity, and availability impacts. Oracle has released security patches addressing this and many other vulnerabilities in their September 2026 Critical Security Patch Update. Customers are strongly advised to apply these patches promptly to mitigate the risk.