HOMEVULNERABILITIESCVE-2026-33668
HIGH

CVE-2026-33668

CWE-285Published: March 24, 2026· Updated: Mar 27, 2026

8.1
CVSS v3.1
EPSS:0.13%probability of exploitation in 30 daysPercentile:31.8th

Official Description

Vikunja is an open-source self-hosted task management platform. Starting in version 0.18.0 and prior to version 2.2.1, when a user account is disabled or locked, the status check is only enforced on the local login and JWT token refresh paths. Three other authentication paths — API tokens, CalDAV basic auth, and OpenID Connect — do not verify user status, allowing disabled or locked users to continue accessing the API and syncing data. Version 2.2.1 patches the issue.

NVD Source

Technical Analysis

CVE-2026-33668 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected Vendors & Products

vikunja1 product
vikunja
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/go-vikunja/vikunja/commit/033922309f492996c928122fb49b691339199c35
PATCHhttps://github.com/go-vikunja/vikunja/commit/04704e0fde4b027039cf583110cee7afe136fc1b
PATCHhttps://github.com/go-vikunja/vikunja/commit/0b04768d830c80e9fde1b0962db1499cc652da0e
PATCHhttps://github.com/go-vikunja/vikunja/commit/fd452b9cb6457fd4f9936527a14c359818f1cca7
ADVISORYhttps://github.com/go-vikunja/vikunja/security/advisories/GHSA-94xm-jj8x-3cr4

All References (6)

→
https://github.com/go-vikunja/vikunja/commit/033922309f492996c928122fb49b691339199c35Patch
→
https://github.com/go-vikunja/vikunja/commit/04704e0fde4b027039cf583110cee7afe136fc1bPatch
→
https://github.com/go-vikunja/vikunja/commit/0b04768d830c80e9fde1b0962db1499cc652da0ePatch
→
https://github.com/go-vikunja/vikunja/commit/fd452b9cb6457fd4f9936527a14c359818f1cca7Patch
→
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-94xm-jj8x-3cr4Exploit · Vendor Advisory
→
https://vikunja.io/changelog/vikunja-v2.2.2-was-releasedRelease Notes

Quick Facts

CVE IDCVE-2026-33668
CVSS Score8.1 / 10
SeverityHIGH
WeaknessCWE-285
CISA KEVNo
EPSS (30d)0.13%
Affected1 vendor
PublishedMar 24, 2026

Related CVEs (CWE-285)

CVE-2026-30956
9.9
CVE-2026-5412
9.9
CVE-2026-32213
9.8
CVE-2026-7663
9.8
CVE-2026-33105
9.8
CVE-2026-10580
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-33668 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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