CVE-2026-91979

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Source
https://cve.org/CVERecord?id=CVE-2026-91979
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91979.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-91979
Aliases
  • GHSA-w7jp-mf2v-8342
Published
2026-09-15T15:18:24Z
Modified
2026-09-18T03:30:22Z
Severity
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Vikunja before 2.6.0 Denial of Service via Decompression Bomb
Details

Vikunja before 2.6.0 fails to limit archive expansion during data import, allowing authenticated users to cause denial of service. Attackers can upload highly compressed files that expand to tens of gigabytes in memory and disk, exhausting server resources and crashing the instance.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-400"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91979.json"
}
References

Affected packages

Git / github.com/go-vikunja/vikunja

Affected ranges

Type
GIT
Repo
https://github.com/go-vikunja/vikunja
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a4218eeb8fb3ada95e14a2331731524c9120d5bd
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.6.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

v0.*
v0.1
v0.10
v0.11
v0.12
v0.13
v0.14.0
v0.15.0
v0.16.0
v0.17.0
v0.18.0
v0.18.1
v0.19.0
v0.19.1
v0.19.2
v0.2
v0.20.0
v0.20.1
v0.20.3
v0.20.4
v0.21.0
v0.22.0
v0.22.1
v0.23.0
v0.24.1
v0.3
v0.4
v0.5
v0.6
v0.7
v0.8
v0.9
v1.*
v1.0.0
v1.0.0-rc0
v1.0.0-rc1
v1.0.0-rc2
v1.0.0-rc3
v1.0.0-rc4
v1.1.0
v2.*
v2.0.0
v2.1.0
v2.2.0
v2.2.1
v2.2.2
v2.3.0
v2.4.0
v2.5.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91979.json"