CVE Watch6 de nov. de 2026

CVE-2026-119036

Business::GoCardless versions before 1.01 for Perl allow memory exhaustion by flattening legacy webhook payloads before checking their signa

CVSS

7.5

Alta

EPSS

0.3%

p29

KEV

—

Exploit Today

0-100

Publicado: 30 de out. de 2026 · Última mod.: 6 de nov. de 2026 · CWE-770

EPSS · 30d

0.2%EPSS · 30 dias0.3%

2026-10-312026-11-07

Descrição técnica

Business::GoCardless versions before 1.01 for Perl allow memory exhaustion by flattening legacy webhook payloads before checking their signature. A webhook body with a top-level "payload" key is verified as a legacy webhook. To rebuild the signed string, the payload is flattened into one key and value pair per leaf, each key carrying the full path to that leaf, and the pairs are then encoded, sorted and joined. A long key holding a long array costs memory proportional to the key length times the array length. A remote attacker can exhaust memory in the process receiving webhooks with a single request that carries no valid signature.

Referências oficiais

metacpan.orghttps://metacpan.org/release/LEEJO/Business-GoCardless-1.01/changes

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