Unknown severity · Source severity not reportedCVE-2026-119037

Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or emptyCVE-2026-119037

Answer in brief

CVE-2026-119037 records a Unknown severity vulnerability in Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty. The current sources do not mark it as known exploited. The current feed maps Business-GoCardless (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 30, 2026Updated Oct 30, 2026Source checked Oct 30, 2026First seen by HOL Oct 30, 2026Material review Oct 30, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Business-GoCardless (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Business-GoCardlessgeneric	>=0 <1.01	1.01

Recommended response

Check inventory. Check lockfiles and deployed manifests for Business-GoCardless.
Review the reported fix. Source-reported solution: Upgrade to Business-GoCardless 1.01 or later.

Evidence timeline and material changes

Published upstream
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 30, 2026

Sources and claim methodology

Source referencemetacpan.org

Upstream source description

Business::GoCardless versions before 1.01 for Perl accept forged webhooks when a configured webhook secret is undef or empty. signature_valid uses each configured secret as the HMAC key, and nothing rejects undef or an empty string, both of which Digest::SHA treats as an empty key. A secret read from an unset environment variable, or an empty entry in a list of rotated secrets, is used as is. A remote attacker can sign a forged webhook with an empty key and have it accepted as sent by GoCardless.

Quoted source text, attributed separately from HOL analysis.