CVE-2026-82681: Improper Encoding

Description

Improper Encoding or Escaping of Output vulnerability in ash-project ash_admin lets an attacker who controls a record's string primary key rewrite the target of AshAdmin's row-action links. The Table, DataTable, and Show components built row-action URLs by raw string interpolation, splicing the primary key (and table, domain, and resource names) into the query string without URL-encoding. Ash resources routinely use user-settable string primary keys (slugs, emails). Because Plug.Conn.Query resolves duplicate parameters last-wins and primary_key is interpolated last, a stored key such as foo&action_type=destroy injects parameters that override the link, so an admin clicking edit is sent to a destroy form or an arbitrary resource; a # truncates the query into a fragment. The fix builds every link with URI.encode_query/1, encoding all interpolated values. This issue affects ash_admin: from 0.3.0-rc.0 before 1.3.1.

Is your site exposed to CVE-2026-82681?

Run a free security scan — no signup, results in seconds.

EPSS — Exploit Prediction

0.0027

Probability of exploitation

0.19%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-116 CWE-116

References

Other References

https://cna.erlef.org/cves/CVE-2026-82681.html https://github.com/ash-project/ash_admin/commit/8e8ef91e8ba07498053887c6212f8b0f08178df6 https://github.com/ash-project/ash_admin/security/advisories/GHSA-j89q-xjrh-c26p https://osv.dev/vulnerability/EEF-CVE-2026-82681 https://github.com/ash-project/ash_admin/security/advisories/GHSA-j89q-xjrh-c26p

Frequently Asked Questions

What is CVE-2026-82681? +

Improper Encoding or Escaping of Output vulnerability in ash-project ash_admin lets an attacker who controls a record's string primary key rewrite the target of AshAdmin's row-action links. The Table, DataTable, and Show components built row-action URLs by raw string interpolation, splicing the primary key (and table, domain, and resource names) into the query string without URL-encoding. Ash resources routinely use user-settable string primary keys (slugs, emails). Because Plug.Conn.Query resolves duplicate parameters last-wins and primary_key is interpolated last, a stored key such as foo&action_type=destroy injects parameters that override the link, so an admin clicking edit is sent to a destroy form or an arbitrary resource; a # truncates the query into a fragment. The fix builds every link with URI.encode_query/1, encoding all interpolated values. This issue affects ash_admin: from 0.3.0-rc.0 before 1.3.1.

How do I check if I'm vulnerable to CVE-2026-82681? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-45570

go-git is an extensible git implementation library written in pure Go. Prior to 5.19.1 and 6.0.0-alpha.4, go-git's SSH transport constructs …

CVE-2025-1795

During an address list folding when a separating comma ends up on a folded line and that line is to …

CVE-2025-32072

Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki Core - Feed Utils allows WebView Injection.This issue …

CVE-2025-32078

Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki - Version Compare Extension allows Cross-Site Scripting (XSS).This …

CVE-2025-1308

A vulnerability exists in PX Backup whereby sensitive information may be logged under specific conditions.

CVE-2025-34141

A reflected cross-site scripting (XSS) vulnerability exists in ETQ Reliance CG (legacy) platform within the `SQLConverterServlet` component. This vulnerability requires …

CVE-2026-82681