Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-86522— Log injection via an unescaped password reset identity in AshAuthentication

Quick assessment

Affected
team-alembic ash_authentication
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

以下是该漏洞描述的专业中文翻译： 日志输出的不当中和（Improper Output Neutralization for Logs）漏洞 Team Alembic 的 AshAuthentication 组件存在一个日志输出未充分过滤的漏洞。未经身份验证的攻击者可以通过提交包含换行符或控制字符的密码重置身份标识（如邮箱或用户名），从而伪造应用程序的日志条目。 在 函数中，来自重置请求的身份标识参数（邮箱或用户名）被直接插值到 的 heredoc 中，过程中未进行转义、截断或类型限制。与之相邻记录的资源对象则经过

CVSS 6.3 · Medium
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-86522

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Log injection via an unescaped password reset identity in AshAuthentication
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Output Neutralization for Logs vulnerability in team-alembic AshAuthentication allows an unauthenticated attacker to forge application log entries by submitting a password reset identity containing newlines or control characters. AshAuthentication.Strategy.Password.RequestPasswordReset.run/3 interpolates the identity argument, the email or username taken straight from the reset request, into its Logger.warning/1 heredocs without escaping, truncating or type-restricting it. The resource logged beside it is passed through inspect/1, which would have neutralized the value. A newline in the identity therefore ends the log record, and everything after it is written as a line of its own, so an attacker chooses the severity tag and the content of entries that appear to have come from the application. This issue affects ash_authentication: from 4.2.0 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.14.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
日志输出的转义处理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
team-alembic ash_authentication 4.2.0 ~ 4.15.0 cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*
team-alembic ash_authentication 3954f277929712755aef57a4a3a821688f121316 ~ * cpe:2.3:a:team-alembic:ash_authentication:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-86522

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-86522

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-86522 (2)

Vendor Advisories for CVE-2026-86522 (2)

Other References for CVE-2026-86522 (1)

Same Patch Batch · team-alembic · 2026-09-17 · 14 CVEs total

CVE-2026-82761 9.1 CRITICAL Magic link single-use tokens replayable via TOCTOU race in AshAuthentication
CVE-2026-86533 9.1 CRITICAL Revoked session accepted because the session jti is never checked in AshAuthentication and
CVE-2026-85500 9.1 CRITICAL `require_confirmed_with` is not enforced on the action and fails open on an unreadable att
CVE-2026-88952 9.1 CRITICAL OAuth2 sign-in attached to an existing account without an email comparison in AshAuthentic
CVE-2026-91039 9.1 CRITICAL dynamic_oidc identities are not namespaced by connection in ash_authentication, allowing c
CVE-2026-82760 8.2 HIGH Superlinear base62 decoding exhausts CPU and memory in AshAuthentication API key sign-in
CVE-2026-82685 7.6 HIGH Confirmation token accepted on any record in AshAuthentication
CVE-2026-80218 7.6 HIGH Sign-in token minted for one resource accepted by another in AshAuthentication
CVE-2026-81632 7.2 HIGH Single-use sign-in token placed in a redirect query string in AshAuthenticationPhoenix
CVE-2026-78223 6.9 MEDIUM Token revocation record built from unverified JWT claims in AshAuthentication
CVE-2026-81637 2.3 LOW Replayable OAuth2 CSRF state retained after a failed callback in AshAuthentication
CVE-2026-82723 1.8 LOW Actor record with password digest stored in AshAuthentication audit log entries
CVE-2026-82759 1.8 LOW Reversible IP address pseudonymisation in AshAuthentication audit log hash mode

IV. Related Vulnerabilities

Same product: ash_authentication
Same vendor: team-alembic
Same weakness: CWE-117

V. Comments for CVE-2026-86522

No comments yet

Leave a comment