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Mattermost doesn't validate decompressed archive entry sizes during file extraction

🗓️ 26 Mar 2026 18:31:42Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 1 Views

Mattermost does not validate decompressed archive sizes, enabling DoS from zip bombs during file extraction.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-3114
26 Mar 202616:21
attackerkb
Circl
CVE-2026-3114
27 Mar 202603:00
circl
CNNVD
Mattermost 安全漏洞
26 Mar 202600:00
cnnvd
CVE
CVE-2026-3114
26 Mar 202616:21
cve
Cvelist
CVE-2026-3114 Zip Bomb Denial of Service via Unrestricted Archive Decompression
26 Mar 202616:21
cvelist
EUVD
EUVD-2026-16242
26 Mar 202618:31
euvd
NVD
CVE-2026-3114
26 Mar 202617:16
nvd
OSV
GHSA-VHGH-G7X8-4RX8 Mattermost doesn't validate decompressed archive entry sizes during file extraction
26 Mar 202618:31
osv
Positive Technologies
PT-2026-28423
26 Mar 202600:00
ptsecurity
RedhatCVE
CVE-2026-3114
26 Mar 202619:27
redhatcve
Rows per page
Vulners
Node
mattermostmattermostRange8.0.0-20260105080200-d27a2195068d8.0.0-20260217110922-b7d4a1f1f59bgo
OR
mattermostmattermostRange10.11.010.11.12go
OR
mattermostmattermostRange11.2.011.2.4go
OR
mattermostmattermostRange11.3.011.3.2go
OR

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31 Mar 2026 23:05Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.16.5
EPSS0.00017
SSVC
1