CVE-2026-105270

The record

Allocation of Resources Without Limits or Throttling vulnerability in esaml_binding in dropbox esaml allows an unauthenticated attacker to exhaust the Erlang VM atom table and crash the node via a crafted SAMLResponse. esaml_binding:decode_response/2 parses the decoded SAMLResponse with xmerl_scan:string/2, which interns every element name, attribute name, and namespace prefix it reads as a permanent atom. The SAML consume (ACS) and single-logout endpoints call it on unauthenticated requests before any signature check, so one well-formed document with thousands of distinct names mints thousands of atoms while staying inside the 128 KB request body limit. Atoms are never reclaimed and the VM caps the atom table at about one million entries, so a few dozen requests abort the node. This issue affects esaml: from 0.1.0 onward.

Affected packages

Related vulnerabilities

• CVE-2026-119699 WPGraphQL Smart Cache before 2.3.3 contains an uncontrolled resource consumption… CWE-770
• CVE-2026-119701 WPGraphQL before 2.24.1 contains a missing rate limiting vulnerability that allows… CWE-770
• CVE-2026-119036 Business::GoCardless versions before 1.01 for Perl allow memory exhaustion by flattening… CWE-770
• CVE-2026-116128 Starlet versions from 0.20 before 0.33 for Perl allow memory exhaustion via unbounded… CWE-770
• CVE-2026-107312 Allocation of Resources Without Limits or Throttling vulnerability in Drupal Examples for… CWE-770
• CVE-2026-119209 pypdf is a free and open-source pure-python PDF library. CWE-770
• CVE-2026-90991 IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote authenticated attacker to… CWE-770
• CVE-2026-119134 Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 caps… CWE-770