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TI-2023-11275 Aliases CVE-2023-26041

Nextcloud Talk messages can still be seen on conversation after expiring when cron is misconfigured

Priority LOW 21CWE-359Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-359.

Summary

Nextcloud Talk is a fully on-premises audio/video and chat communication service. When cron jobs were misconfigured and therefore messages are not expired, the API would still return them while they were then hidden by the frontend code. It is recommended that the Nextcloud Talk is upgraded to 15.0.3. There are no workaround available.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00799 56th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed security-advisories (nextcloud): 15.0.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
nextcloudsecurity-advisoriesbefore 15.0.315.0.3Patch availableCNA
  • security-advisories Vendornextcloud Affected before 15.0.3 Fixed in 15.0.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nextcloud:nextcloud_talk:*:*:*:*:*:*:*:*15.0.0 to before 15.0.3Vulnerablenextcloud
  • cpe:2.3:a:nextcloud:nextcloud_talk:*:*:*:*:*:*:*:* Versions 15.0.0 to before 15.0.3 Vulnerable ·nextcloud

Remediation

  • Fix · CNA security-advisories (nextcloud) Fixed in 15.0.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-26041

References

  • TI-2022-20311 Nextcloud Talk guests can continue to receive video streams from call after being removed from a conversation CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences