CVE Explorer
CVE-2026-35599
Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the addRepeatIntervalToTime function uses an O(n) loop that advances a date by the task's RepeatAfter duration until it exceeds the current time. By creating a repeating task with a 1-second interval and a due date far in the past, an attacker triggers billions of loop iterations, consuming CPU and holding a database connection for minutes per request. This vulnerability is fixed in 2.3.0.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"vikunja","vendor":"go-vikunja","versions":[{"status":"affected","version":"< 2.3.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:f62c3f2ca21bad13b801b7bb37e9e25fd00b820d617806df82f52b12fdc2890e · sha256:2b9793d7dd640b14… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:f62c3f2ca21bad13b801b7bb37e9e25fd00b820d617806df82f52b12fdc2890e · sha256:2b9793d7dd640b14… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-407","description":"CWE-407: Inefficient Algorithmic Complexity","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:f62c3f2ca21bad13b801b7bb37e9e25fd00b820d617806df82f52b12fdc2890e · sha256:2b9793d7dd640b14… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/go-vikunja/vikunja/commit/6df0d6c8f54b01db6464c42810e40e55f12b481b","tags":["x_refsource_MISC"],"url":"https://github.com/go-vikunja/vikunja/commit/6df0d6c8f54b01db6464c42810e40e55f12b481b"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f62c3f2ca21bad13b801b7bb37e9e25fd00b820d617806df82f52b12fdc2890e · sha256:2b9793d7dd640b14… · /containers/cna/references/2
{"name":"https://github.com/go-vikunja/vikunja/pull/2577","tags":["x_refsource_MISC"],"url":"https://github.com/go-vikunja/vikunja/pull/2577"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f62c3f2ca21bad13b801b7bb37e9e25fd00b820d617806df82f52b12fdc2890e · sha256:2b9793d7dd640b14… · /containers/cna/references/1
{"name":"https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0","tags":["x_refsource_MISC"],"url":"https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f62c3f2ca21bad13b801b7bb37e9e25fd00b820d617806df82f52b12fdc2890e · sha256:2b9793d7dd640b14… · /containers/cna/references/3
{"name":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-r4fg-73rc-hhh7","tags":["x_refsource_CONFIRM"],"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-r4fg-73rc-hhh7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f62c3f2ca21bad13b801b7bb37e9e25fd00b820d617806df82f52b12fdc2890e · sha256:2b9793d7dd640b14… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.