CVE-2026-81319Public exploitHinoki check available

BEAM node crash via unsafe decrypted-term decoding

Published Aug 30, 2026 · Updated Aug 30, 2026

Deserialization of untrusted data in AshCloak 0.1.0 through 0.3.1 allows attackers to crash the BEAM node via forged encrypted columns. AshCloak.Calculations.Decrypt passes decrypted bytes to Ash.Helpers.non_executable_binary_to_term/1 without the safe option, interning attacker-supplied atoms and transparently inflating compressed terms. Exploitation requires modifiable stored ciphertext or an unauthenticated vault cipher and a subsequent field read; atom exhaustion or memory expansion crashes the node until restart.

CVSS severity5.9
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Deserialization of untrusted data in AshCloak 0.1.0 through 0.3.1 allows attackers to crash the BEAM node via forged encrypted columns. AshCloak.Calculations.Decrypt passes decrypted bytes to Ash.Helpers.non_executable_binary_to_term/1 without the safe option, interning attacker-supplied atoms and transparently inflating compressed terms. Exploitation requires modifiable stored ciphertext or an unauthenticated vault cipher and a subsequent field read; atom exhaustion or memory expansion crashes the node until restart.

The record

CVE
CVE-2026-81319
Published
Aug 30, 2026
Updated
Aug 30, 2026
Vendor
Ash Framework
Product
AshCloak
Classifications
CWE-502, CAPEC-586, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.1.0 <0.4.0
  2. Affected versionversion=f1595a77fdfa9bfc672f84c2f77feb9e7bf895fc <1690f0a436efe3e7c11d70d74ff5a8ac0fdf6608

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Ash Framework · AshCloakversion=0.1.0 <0.4.0; version=f1595a77fdfa9bfc672f84c2f77feb9e7bf895fc <1690f0a436efe3e7c11d70d74ff5a8ac0fdf6608

Published CVSS scores

5.9Ash ProjectCVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CAPEC-586Object Injection
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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