CVE-2026-86696
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Unbounded atom creation from unsigned LogoutResponse status codes in esaml allows atom table exhaustion
Allocation of Resources Without Limits or Throttling vulnerability in esaml in dropbox esaml allows an unauthenticated attacker to exhaust the Erlang VM atom table and crash the node via unsigned LogoutResponse messages. esaml:status_code_map/1 in src/esaml.erl maps any StatusCode value it does not recognize to an atom with list_to_atom/1 on the last colon-separated segment of the URN. esaml_sp:validate_logout_response/2 verifies a signature only when the message carries one, so an unsigned LogoutResponse posted to the single-logout endpoint reaches esaml:decode_logout_response/1 and mints one permanent atom per distinct status value. Atoms are never reclaimed and the VM caps the atom table at about one million entries, so an attacker who posts that many distinct values aborts the node. This issue affects esaml: from 0.1.0 onward.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
esaml
- Vendor
- handnot2
- Product
- esaml
- Platforms
- Unknown
- Default status
unaffected- Package
- handnot2/esaml
- Package collection
- https://github.com
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| be692b56245071899757afa7ef47e43593d3de96 | affected | git | * | Unavailable | None listed |
esaml
- Vendor
- arekinath
- Product
- esaml
- Platforms
- Unknown
- Default status
unaffected- Package
- arekinath/esaml
- Package collection
- https://github.com
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| be692b56245071899757afa7ef47e43593d3de96 | affected | git | * | Unavailable | None listed |
esaml
- Vendor
- dropbox
- Product
- esaml
- Platforms
- Unknown
- Default status
unaffected- Package
- esaml
- Package collection
- https://repo.hex.pm
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0.1.0 | affected | semver | * | Unavailable | None listed |
esaml
- Vendor
- dropbox
- Product
- esaml
- Platforms
- Unknown
- Default status
unaffected- Package
- dropbox/esaml
- Package collection
- https://github.com
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| be692b56245071899757afa7ef47e43593d3de96 | affected | git | * | Unavailable | None listed |