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CVE-2026-77337 cakephp CVE debrief

CVE-2026-77337 debrief based on the supplied source corpus. The CakePHP Authentication plugin has a vulnerability in versions before 2.11.2, 3.3.7, and 4.2.1 that allows authentication bypass and potential CPU or memory exhaustion when using unencrypted, forgeable legacy tokens. This issue affects authentication systems using CakePHP Authentication plugin. Defenders should assess exposure and potential impacts. The CVE record and NVD entry provide details on the authentication bypass and potential CPU or memory exhaustion issue.

Vendor
cakephp
Product
authentication
CVSS
CRITICAL 9.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-24
Original CVE updated
2026-09-09
Advisory published
2026-08-24
Advisory updated
2026-09-09

Who should care

Defenders responsible for authentication systems using CakePHP Authentication plugin should assess exposure and potential impacts. This includes operators, platform administrators, vulnerability management teams, and security teams. They should prioritize verifying exposure and assessing potential impacts on authentication systems using CakePHP Authentication plugin versions before 2.11.2, 3.3.7, and 4.2.1.

Why it matters

Defenders should prioritize verifying exposure and assessing potential impacts on authentication systems using CakePHP Authentication plugin versions before 2.11.2, 3.3.7, and 4.2.1 due to the authentication bypass and potential CPU or memory exhaustion issue.

  • Potential authentication bypass
  • Potential CPU or memory exhaustion
  • Verification of exposure and impacts required

Technical summary

The CakePHP Authentication plugin has a vulnerability in versions before 2.11.2, 3.3.7, and 4.2.1 that allows authentication bypass and potential CPU or memory exhaustion when using unencrypted, forgeable legacy tokens. This issue affects authentication systems using CakePHP Authentication plugin. The vulnerability can lead to authentication bypass and potential CPU or memory exhaustion. Defenders should prioritize verifying exposure and assessing potential impacts on authentication systems using CakePHP Authentication plugin versions before 2.11.2, 3.3.7, and 4.2.1.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impacts on authentication systems using CakePHP Authentication plugin versions before 2.11.2, 3.3.7, and 4.2.1.

Recommended defensive actions

  • Verify exposure by checking current CakePHP Authentication plugin versions
  • Assess potential impacts on authentication systems
  • Update to versions 2.11.2, 3.3.7, or 4.2.1 if vulnerable
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the authentication bypass and potential CPU or memory exhaustion issue in CakePHP Authentication plugin. Specific details on exploitation, victims, or business impact are not provided. Defenders should verify exposure and assess potential impacts on authentication systems using CakePHP Authentication plugin versions before 2.11.2, 3.3.7, and 4.2.1. Evidence limits are based on available source information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-77337 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-77337

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

  • CVE-2026-77337 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-77337

    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.