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Fabric CA: LDAP Injection via Unescaped Username in GetUser Filter

Collected exploitation and prediction evidence

Risk source coverage

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

Dated risk observations

Risk history is separate from CNA/OSV content history. Daily score drift is retained but only an upward crossing of 10% triggers the prediction change event.

Immutable source observations

12 recorded revisions

Each citation identifies one complete source statement. Source modification dates and the time this installation observed them are distinct. Latest history includes records historically associated by source identifiers; a removed alias is not a current equivalence claim. Exact citations show that source record's own earlier observations. Failed reads and unchanged polls do not rewrite history.

11 Nov 2026 13:10:39 UTC

Fabric CA is a Certificate Authority for Hyperledger Fabric. Prior to 1.5.21, when fabric-ca is configured with an LDAP backend, Client.GetUser in lib/server/ldap/client.go inserts the username from HTTP Basic authentication into the LDAP u…

euvd · EUVD-2026-78835 · Published

9 Nov 2026 12:12:39 UTC

Fabric CA is a Certificate Authority for Hyperledger Fabric. Prior to 1.5.21, when fabric-ca is configured with an LDAP backend, Client.GetUser in lib/server/ldap/client.go inserts the username from HTTP Basic authentication into the LDAP u…

euvd · EUVD-2026-78835 · Published

7 Nov 2026 11:38:20 UTC

Fabric CA is a Certificate Authority for Hyperledger Fabric. Prior to 1.5.21, when fabric-ca is configured with an LDAP backend, Client.GetUser in lib/server/ldap/client.go inserts the username from HTTP Basic authentication into the LDAP u…

euvd · EUVD-2026-78835 · Published

5 Nov 2026 10:48:24 UTC

Fabric CA is a Certificate Authority for Hyperledger Fabric. Prior to 1.5.21, when fabric-ca is configured with an LDAP backend, Client.GetUser in lib/server/ldap/client.go inserts the username from HTTP Basic authentication into the LDAP u…

euvd · EUVD-2026-78835 · Published

3 Nov 2026 10:07:32 UTC

Fabric CA is a Certificate Authority for Hyperledger Fabric. Prior to 1.5.21, when fabric-ca is configured with an LDAP backend, Client.GetUser in lib/server/ldap/client.go inserts the username from HTTP Basic authentication into the LDAP u…

euvd · EUVD-2026-78835 · Published

1 Nov 2026 09:16:47 UTC

Fabric CA is a Certificate Authority for Hyperledger Fabric. Prior to 1.5.21, when fabric-ca is configured with an LDAP backend, Client.GetUser in lib/server/ldap/client.go inserts the username from HTTP Basic authentication into the LDAP u…

euvd · EUVD-2026-78835 · Published

30 Oct 2026 08:59:44 UTC

Fabric CA is a Certificate Authority for Hyperledger Fabric. Prior to 1.5.21, when fabric-ca is configured with an LDAP backend, Client.GetUser in lib/server/ldap/client.go inserts the username from HTTP Basic authentication into the LDAP u…

euvd · EUVD-2026-78835 · Published

28 Oct 2026 07:18:22 UTC

Fabric CA is a Certificate Authority for Hyperledger Fabric. Prior to 1.5.21, when fabric-ca is configured with an LDAP backend, Client.GetUser in lib/server/ldap/client.go inserts the username from HTTP Basic authentication into the LDAP u…

euvd · EUVD-2026-78835 · Published

25 Oct 2026 13:17:16 UTC

Fabric CA is a Certificate Authority for Hyperledger Fabric. Prior to 1.5.21, when fabric-ca is configured with an LDAP backend, Client.GetUser in lib/server/ldap/client.go inserts the username from HTTP Basic authentication into the LDAP u…

nvd · CVE-2026-53658 · Published

24 Oct 2026 13:19:41 UTC

Fabric CA Developer's Guide: LDAP Injection via Unescaped Username in GetUser Filter

osv · GHSA-xghw-p77p-3r7x · Published

24 Oct 2026 13:19:41 UTC

LDAP injection via unescaped username in github.com/hyperledger/fabric-ca

osv · GO-2026-6234 · Published

23 Oct 2026 15:48:27 UTC

Fabric CA: LDAP Injection via Unescaped Username in GetUser Filter

cve-program · CVE-2026-53658 · Published

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 12 Nov 04:29 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current