# CVE-2026-69659: Uncontrolled Resource Consumption vulnerability in ash-project ash allows an attacker to exhaust the memory of the…

Source: https://junglewise.ai/threats/cve-2026-69659-uncontrolled-resource-consumption-vulnerability-in-ash-project  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-09  
License: CC BY 4.0 with a link back

CVE-2026-69659 · Severity: medium · CVSS 5.5 · Published 2026-08-09

Uncontrolled Resource Consumption vulnerability in ash-project ash allows an attacker to exhaust the memory of the node via a crafted keyset pagination cursor.

Read actions with keyset pagination deserialize the client-supplied page[:after] or page[:before] cursor in decode_values/2 in lib/ash/page/keyset.ex, which base64-decodes the value and passes it to :erlang.binary_to_term/2 without bounding its size. The Erlang external term format supports zlib-compressed payloads, which the decoder inflates transparently, so a cursor of a few kilobytes can allocate tens of megabytes of heap in a single call. Ash itself only ever encodes cursors uncompressed, so the decoder accepts a term shape its encoder never produces. Concurrent requests aggregate these allocations and can terminate the node.

This issue affects ash: from 1.17.0 before 3.31.1.

Technologies: [Ash-Hq Ash Framework](https://junglewise.ai/threats/technologies/ash-framework). Vendors: [Ash-Hq](https://junglewise.ai/threats/vendors/ash-hq).

## Quick answers

**Is CVE-2026-69659 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69659 being exploited in the wild.

**How severe is CVE-2026-69659?** Medium severity, with a CVSS score of 5.5, published 9 August 2026.

**Which products and versions are affected?** Ash-Hq Ash Framework. The advisory does not name versions.

**Is there a fix for CVE-2026-69659?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2026-69659?** Check whether you run Ash-Hq Ash Framework. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Ash-Hq Ash Framework

## Related threats

- [Deserialization of Untrusted Data vulnerability in ash-project ash allows an unauthenticated attacker to inject a…](https://junglewise.ai/threats/cve-2026-67579-deserialization-of-untrusted-data-vulnerability-in-ash-project)
- [Ash Framework Denial of Service via Atom Exhaustion in Module Type](https://junglewise.ai/threats/cve-2026-34593-ash-framework-denial-of-service-via-atom-exhaustion-in-module)