CVE-20XX-?
agent?

CVE-2026-45691

5.9 MEDIUM 0.3% exploit odds Fix listed Auth & access Server

What it is

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.9, and 33.0.0 to before 33.0.3, a pre-2FA session cookie (created after successful password authentication but before TOTP completion) could be reused as a Bearer token to authenticate against DAV endpoints, granting read/write access and bypassing mandatory two-factor authentication. It is recommended that the Nextcloud Server is upgraded to 33.0.3 or 32.0.9. It is recommended that the Nextcloud Enterprise Server is upgraded to 33.0.3, 32.0.9, 31.0.14.5, 30.0.17.9 or 29.0.16.16

At a glance

Exploitability
Can be exploited over the network with a low-privilege account. High risk of data tampering.
Exploit odds
0.3% chance of exploitation in the next 30 days (EPSS).
Fix
A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

  1. PublishedDisclosed publicly on CVE.org and NVD
  2. Last updatedMost recent change to the record

Why it ranks here

Details

Published
Last modified
Exploit probability
0.3% · EPSS, next 30 days
Weakness
CWE-287 · Improper authentication
Record status
Analyzed

Affected

Attack profile CVSS 3.1 · 5.9

Attack vector
Network
Complexity
High
Privileges needed
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None
Raw vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

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Fix and advisories

References

NVD record · CVE.org record