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PatchSiren cyber security CVE debrief

CVE-2026-91263 Oracle Corporation CVE debrief

A vulnerability in PeopleSoft Enterprise PeopleTools allows low-privileged attackers with network access via HTTP to compromise the product, potentially impacting additional products. Successful attacks can result in unauthorized update, insert, or delete access to some PeopleSoft Enterprise PeopleTools accessible data, as well as unauthorized read access to a subset of PeopleSoft Enterprise PeopleTools accessible data.

Vendor
Oracle Corporation
Product
PeopleSoft Enterprise PeopleTools
CVSS
MEDIUM 4.9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-20
Original CVE updated
2026-10-28
Advisory published
2026-10-20
Advisory updated
2026-10-28

Who should care

Defenders responsible for PeopleSoft Enterprise PeopleTools, administrators of connected products, security teams, and vulnerability management teams should assess exposure and potential impacts. Operators of affected systems should prioritize verifying exposure and assessing potential impacts on connected products.

Why it matters

Defenders should prioritize verifying exposure in PeopleSoft Enterprise PeopleTools versions 8.61-8.63 and assessing the potential impact on connected products due to the medium-severity vulnerability allowing low-privileged attackers to compromise the product.

  • Potential unauthorized update, insert, or delete access to some PeopleSoft Enterprise PeopleTools accessible data
  • Potential unauthorized read access to a subset of PeopleSoft Enterprise PeopleTools accessible data
  • Need to verify exposure in PeopleSoft Enterprise PeopleTools versions 8.61-8.63
  • Potential impact on connected products requires assessment

Technical summary

The vulnerability in PeopleSoft Enterprise PeopleTools has a CVSS 3.1 Base Score of 4.9, indicating a medium severity. It allows low-privileged attackers with network access via HTTP to compromise the product, potentially impacting additional products. Successful attacks can result in unauthorized update, insert, or delete access to some PeopleSoft Enterprise PeopleTools accessible data, as well as unauthorized read access to a subset of PeopleSoft Enterprise PeopleTools accessible data. The vulnerability affects PeopleSoft Enterprise PeopleTools versions 8.61-8.63.

Defensive priority

Defenders should prioritize verifying exposure in PeopleSoft Enterprise PeopleTools versions 8.61-8.63 and assessing the potential impact on connected products.

Recommended defensive actions

  • Verify PeopleSoft Enterprise PeopleTools versions 8.61-8.63 for exposure
  • Assess potential impact on connected products
  • Review and update access controls for PeopleSoft Enterprise PeopleTools
  • Monitor for suspicious activity
  • Apply vendor patches or updates
  • Review compensating controls for exposed systems
  • Track exceptions and retest remediated assets

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, its impacts, and affected versions. However, additional information on potential exploits or affected products may be limited. Defenders should verify exposure in PeopleSoft Enterprise PeopleTools versions 8.61-8.63 and assess potential impacts on connected products. The vulnerability allows low-privileged attackers with network access via HTTP to compromise the product, potentially impacting additional products.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-91263 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-91263

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-91263 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-91263

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.