CVE-2026-59966Public exploitNetwork attack vectorHinoki check available

Worker exhaustion via unchecked automation regex

Published Oct 16, 2026 · Updated Oct 16, 2026

ReDoS in Tandoor Recipes before 2.6.10 allows remote authenticated users to hang application workers through recipe-import automations. In cookbook/helper/automation_helper.py, apply_regex_replace_automation passes Automation.param_2 directly to Python re.sub() without complexity validation or an execution timeout. Exploitation requires storing an automation and importing matching recipe content in the same Space; catastrophic backtracking occupies Gunicorn workers until request timeout, and concurrent imports exhaust worker slots.

CVSS severity5.7
Medium
EPSS probability0.32%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

ReDoS in Tandoor Recipes before 2.6.10 allows remote authenticated users to hang application workers through recipe-import automations. In cookbook/helper/automation_helper.py, apply_regex_replace_automation passes Automation.param_2 directly to Python re.sub() without complexity validation or an execution timeout. Exploitation requires storing an automation and importing matching recipe content in the same Space; catastrophic backtracking occupies Gunicorn workers until request timeout, and concurrent imports exhaust worker slots.

The record

CVE
CVE-2026-59966
Published
Oct 16, 2026
Updated
Oct 16, 2026
Vendor
Tandoor Recipes
Product
Tandoor Recipes
Classifications
CWE-1333, T1499.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 16, 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=< 2.6.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Tandoor Recipes · Tandoor Recipesversion=< 2.6.10

Published CVSS scores

5.7GitHub CNACVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1333Inefficient Regular Expression Complexity
T1499.003Application Exhaustion Flood

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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