CVE-2026-65067 EGOR CVE debrief

Who should care

Users of Data::Intern::Shared versions before 0.02 for Perl should be aware of this vulnerability. Local users may be able to read sensitive information stored in the shared segment. Operators, platform administrators, vulnerability management teams, and security teams should review the vulnerability and take necessary actions.

Technical summary

The Data::Intern::Shared package creates a shared segment in a directory like /tmp or /dev/shm with permissions that allow any local user to read the contents. The open call uses mode 0666 and does not specify O_EXCL or O_NOFOLLOW, making it possible for an attacker to exploit this vulnerability. A pre-planted file or symlink at the path can be used by a local attacker to win a pre-creation race or redirect the open. This allows any local user to read IPC payloads stored in the world-readable segment.

Defensive priority

High

Recommended defensive actions

• Update to Data::Intern::Shared version 0.02 or later
• Verify permissions on shared segments
• Monitor for suspicious activity
• Review compensating controls for exposed systems
• Check relevant monitoring, detection, and logs for exposed assets
• Track exceptions and retest remediated assets
• Confirm whether affected product deployments exist in managed environments

Evidence notes

The CVE record was published on 2026-07-21T20:17:05.733Z and last modified on 2026-07-22T16:21:53.517Z. The NVD entry is currently Deferred. Evidence is limited to CVE and NVD information. Defenders should verify affected product deployments, review official advisories, and plan updates or mitigations. Monitoring and compensating controls are recommended while remediation is scheduled.

Sources and 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.