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CVE-2021-27919

MEDIUM
5.5
CVSS Score
Published: March 11, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 03:45 AM UTC
2 products affected across 2 vendorsFedoraGo

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Severity
MEDIUM5.5
Exploit prediction
EPSS 2%

Description

archive/zip in Go 1.16.x before 1.16.1 allows attackers to cause a denial of service (panic) upon attempted use of the Reader.Open API for a ZIP archive in which ../ occurs at the beginning of any filename.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Fedora· Fedora Projectrpm
95%
3435
Go· Golang
95%
1.16.0 ≤ v < 1.16.1
Affected range stops below 1.16.1, so it looks safe — our inference, not a vendor statement

References (4)

x_refsource_MISCMailing ListVendor Advisory
Source: [email protected]
https://groups.google.com/g/golang-announce/c/MfiLYjG-RAw
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MU47VKTNXX33ZDLTI2ORRUY3KLJKU6G/
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HM7U5JNS5WU66Q3S26PFIU2ITB2ATTQ4/
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202208-02

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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