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CVE-2020-15216

Signature Validation Bypass in goxmldsig

MEDIUM
6.5
CVSS Score
Published: September 29, 2020 at 04:00 PM UTC
Updated: June 17, 2026 at 02:56 AM UTC
3 products affected across 3 vendorsFedoraGoxmldsigGoxmldsig

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.9%

Description

In goxmldsig (XML Digital Signatures implemented in pure Go) before version 1.1.0, with a carefully crafted XML file, an attacker can completely bypass signature validation and pass off an altered file as a signed one. A patch is available, all users of goxmldsig should upgrade to at least revision f6188febf0c29d7ffe26a0436212b19cb9615e64 or version 1.1.0

Affected

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

Fedora· Fedora Projectrpm
95%
3233
Goxmldsig· Goxmldsig Projectgo
95%
v < 1.1.0
Affected range stops below 1.1.0, so it looks safe — our inference, not a vendor statement
Goxmldsig· Russellhaeringgo
60%
v < 1.1.0
Affected range stops below 1.1.0, so it looks safe — our inference, not a vendor statement

References (5)

x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/russellhaering/goxmldsig/commit/f6188febf0c29d7ffe26a0436212b19cb9615e64
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUH33FPUXED3FHYL25BJOQPRKFGPOMS2/
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZECBFD4M4PHBMBOCMSQ537NOU37QOVWP/
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://pkg.go.dev/github.com/russellhaering/goxmldsig?tab=overview

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-347

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