PT-2026-51077 · Corewcf+2 · Corewcf+1

CVE-2026-54780

·

Published

2026-06-19

·

Updated

2026-07-10

CVSS v3.1

3.7

Low

VectorAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Name of the Vulnerable Software and Affected Versions CoreWCF versions prior to 1.8.1 CoreWCF versions prior to 1.9.1
Description The WS-Security 1.0 receive pipeline validates the SignatureMethod of an incoming ds:SignedInfo against the configured SecurityAlgorithmSuite but fails to validate the DigestMethod declared on each ds:Reference. This allows a sender to use a rejected digest algorithm, such as SHA-1, while the message is still accepted because the signature is verified using a method that permits SHA-1 digests.
Recommendations Update to version 1.8.1. Update to version 1.9.1.

Exploit

Fix

Use of a Broken Cryptographic Algorithm

Found an issue in the description? Have something to add? Feel free to write us 👾

Weakness Enumeration

Related Identifiers

CVE-2026-54780
GHSA-4V55-CPMV-3VCM

Affected Products

Corewcf
Corewcf.Primitives