VULNpocalypse

CVE-2026-35273: Oracle PeopleSoft Enterprise PeopleTools Missing Authentication for Critical Function Vulnerability

Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.

Generated by VEDAS. Scores as of 2026-11-01 19:19 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.

What it is

Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Updates Environment Management). Supported versions that are affected are 8.61 and 8.62. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools. Successful attacks of this vulnerability can result in takeover of PeopleSoft Enterprise PeopleTools. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Description quoted from the CVE record (assigned by oracle, published 2026-06-11).

Weakness: CWE-306 Missing Authentication for Critical Function

How it can be exploited

Exploitable over the network with low attack complexity needing no privileges and no user interaction. Impact: confidentiality high, integrity high, availability high. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA assessment (SSVC): CISA assesses exploitation as active. Automatable: yes. Technical impact: total.

On CISA KEV since
2026-06-12
US federal deadline
2026-06-15
Ransomware use
Yes

Public exploit evidence (Exploit Observer)

Also known as: BDU:2026-08250, EUVD-2026-36199, GHSA-25mw-359m-f6rj, ZDI-26-387, ZDI-26-388, ZDI-26-389

VEDAS cluster: VEDAS:BARNACLEBUSTER

Exploit Observer links 11 pieces of public exploit code or detection modules that name this CVE or one of its aliases.

Exploit code and modules (11)

Code that names this CVE. A repository can be a working exploit, a scanner, a fake or malware; read it before running anything.

Research and write-ups (6)

Vulnerability databases and vendor advisories (4)

Catalogue entries, not exploit evidence.

News (3)

124 more references returned by Exploit Observer did not name this CVE or an alias, so they are left out.

VEDAS data as of 2026-11-01T17:12 UTC; fetched 2026-11-02.

Live scores

EPSS
0.967
very likely to be attacked soon
VEDAS
0.988
strong exploit evidence
On CISA KEV
Yes, since 2026-06-12
Detection rule
Nuclei · Suricata
EPSS (chance of attack)
100.1CVE-2026-35273 EPSS over time2026-082026-11-01
VEDAS (exploit evidence)
100.9CVE-2026-35273 VEDAS over time2026-082026-11-01

Thin horizontal line: the “likely” (EPSS 0.10) or “strong” (VEDAS 0.90) threshold. Shaded “no data” areas are periods when cve-scores did not publish.

Who is affected

ProductAffectedNot affected
Oracle Corporation PeopleSoft Enterprise PeopleToolsversion 8.61
version 8.62		Not stated

Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.

Exploit Observer also maps it to: oracle peoplesoft_enterprise_peopletools, oracle_corp. peoplesoft_enterprise_peopletools.

How to fix it

CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset’s internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Vendor guidance:

How to detect it

Nuclei template (active check)

Oracle - Insecure Deserialization

Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Updates Environment Management). Supported versions that are affected are 8.61 and 8.62.

Name and description quoted from the template, written by VEDAS.

The template sends 1 request (POST /PSEMHUB/hub); it confirms through an out-of-band callback (interactsh), so the scanner must be able to receive it; it decides using dsl matchers. Severity in the template: critical. Marked as not yet verified against a live vulnerable target.

Run it against a host you own or are authorised to test:

bash
nuclei -u https://your-host -t CVE-2026-35273.yaml
Show the template (36 lines)
yaml
id: CVE-2026-35273

info:
  name: "Oracle - Insecure Deserialization"
  author: vedas-arpsyndicate
  severity: critical
  description: |
    Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Updates
    Environment Management). Supported versions that are affected are 8.61 and 8.62.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2026-35273&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=oracle&match=exact
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2026-35273
    cwe-id: CWE-502
  metadata:
    verified: false
  tags: cve,cve2026,oracle,peoplesoft,deserialization,rce,kev,oast,vkev
http:
  - raw:
      - |
        POST /PSEMHUB/hub HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded

        OPERATION={{generate_java_gadget("dns", "http://{{interactsh-url}}", "base64")}}

    matchers:
      - type: dsl
        dsl:
          - "status_code == 200"
          - "contains(body, 'rO0ABX')"
          - "contains(interactsh_protocol, 'dns')"
        condition: and

CVE-2026-35273.yaml on GitHub

Suricata rules (network detection)

1 rule that alert on traffic matching this exploit: VEDAS CVE-2026-35273 Oracle - Insecure Deserialization. Add them to your Suricata rule set and reload.

Show the rules
suricata
alert http $EXTERNAL_NET any -> $HTTP_SERVERS $HTTP_PORTS (msg:"VEDAS CVE-2026-35273 Oracle - Insecure Deserialization"; flow:established,to_server; http.uri; content:"PSEMHUB"; nocase; http.request_body; content:"http://"; nocase; fast_pattern; classtype:web-application-attack; reference:cve,CVE-2026-35273; reference:url,https://www.exploit.observer/?keyword=CVE-2026-35273&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=oracle&match=exact; sid:1010223; rev:1;)

CVE-2026-35273.rules on GitHub

Advisories on this CVE

References

Vendor advisories and patches

Government sources

Other databases

Where this comes from

This advisory is generated automatically by VEDAS from: CVE.org record, CISA KEV, cve-scores (EPSS and VEDAS), Exploit Observer, vedas-signatures. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.