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TI-2017-13535 Aliases CVE-2017-18361GHSA-rv95-4wxj-6fqq

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause…

Priority LOW 37CWE-835Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-835.

Summary

In Pylons Colander through 1.6, the URL validator allows an attacker to potentially cause an infinite loop thereby causing a denial of service via an unclosed parenthesis.

Why it matters now

EPSS 0.02072 81st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed colander (PyPI): 1.7.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—colander (PyPI)before 1.7.01.7.0Patch availableGHSA-rv95-4wxj-6fqq
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • colander (PyPI) Vendor— Affected before 1.7.0 Fixed in 1.7.0 Patch available GHSA-rv95-4wxj-6fqq

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pylonsproject:colander:*:*:*:*:*:*:*:*up to 1.6VulnerablePylons
  • cpe:2.3:a:pylonsproject:colander:*:*:*:*:*:*:*:* Versions up to 1.6 Vulnerable ·Pylons

Remediation

  • Fix · GHSA-rv95-4wxj-6fqq colander (PyPI) Fixed in 1.7.0 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-18361
  2. 2026-10-03 Alias added: GHSA-rv95-4wxj-6fqq

References

Exploit 1

Patch 1

Advisory 2

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences