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VulnerabilityPublished Updated

CVE-2026-70395: ash · Improper Neutralization of Special Elements in Data Query Logic

Affects ashSource CVE Database V5

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Not known to be exploited · CVSS 2.1 Low : upgrade to 3.31.1 when convenient.

Data as of 7 Nov 2026, 23:24 UTC

CVSS 4.0 base score
2.1Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.31.1, 09f42593035bceb0f6153dd7ee45cc49d108300a
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.

What to do

Upgrade ash to 3.31.1; ash to 09f42593035bceb0f6153dd7ee45cc49d108300a.

Affected software

ProductAffectedFixed in
ash-projectashAffected
  • >=1.52.0-rc.11 <3.31.1
Fixed in
  • 3.31.1
ash-projectashAffected
  • ≥ 571c138140e71cea24005189f45d7a63c8d2ed20, < 09f42593035bceb0f6153dd7ee45cc49d108300a
Fixed in
  • 09f42593035bceb0f6153dd7ee45cc49d108300a
Hexashpkg:hex/ashOther threatsAffected
  • >=1.52.0-rc.11 <3.31.1
Fixed in
  • 3.31.1

CPE configurations (1)

  • cpe:2.3:a:ash-project:ash:*:*:*:*:*:*:*:*

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Authorization policies remain effective, so no immediate action is required to prevent unauthorized data access beyond existing controls.

Description

CVE-2026-70395 is a low severity vulnerability in ash-project ash that allows an attacker to manipulate data query logic by submitting specially crafted lookup values. This improper neutralization of special elements in data query logic can enable an attacker to forge relationships to records they cannot name and recover secret lookup values. The issue arises when the manage_relationship function uses on_lookup: :relate on a belongs_to relationship, passing client-supplied lookup values to Ash.Query.filter/2 without proper type casting. Authorization policies remain enforced, limiting unauthorized data access.

References

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