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TI-2026-36435 Aliases CVE-2026-49234GHSA-gc6q-cwcj-3vh9

Routinator crashes on specifically crafted ASN strings in the API

Priority LOW 35CWE-20Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

Summary

When sending a specifically crafted non-UTF-8 string as select-asn query parameter to the /api/v1/origins endpoint, Routinator crashes. This only affects users who allow API access from untrusted networks.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00266 18th percentileScored 2026-11-07
Fix Fixed Routinator (NLnet Labs): 0.15.2routinator (crates.io): 0.15.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NLnet LabsRoutinator—0.15.2Patch availableCNA
—routinator (crates.io)before 0.15.20.15.2Patch availableGHSA-gc6q-cwcj-3vh9
  • Routinator VendorNLnet Labs Affected — Fixed in 0.15.2 Patch available CNA
  • routinator (crates.io) Vendor— Affected before 0.15.2 Fixed in 0.15.2 Patch available GHSA-gc6q-cwcj-3vh9

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nlnetlabs:routinator:*:*:*:*:*:*:*:*before 0.15.2VulnerableNLNETLABS
  • cpe:2.3:a:nlnetlabs:routinator:*:*:*:*:*:*:*:* Versions before 0.15.2 Vulnerable ·NLNETLABS

Remediation

  • Fix · CNA Routinator (NLnet Labs) Fixed in 0.15.2
  • Fix · GHSA-gc6q-cwcj-3vh9 routinator (crates.io) Fixed in 0.15.2 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-2026-49234
  2. 2026-10-03 Alias added: GHSA-gc6q-cwcj-3vh9

References

Advisory 2

Other 2

  • TI-2026-25690 Possible arbitrary code execution during DNSSEC validation CVSS 4.0CRITICAL 9.1
  • TI-2026-56302 Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY CVSS 4.0CRITICAL 9.1
  • TI-2026-31146 Crash during DNSSEC validation of malicious content CVSS 4.0HIGH 8.7
  • TI-2026-31135 Heap overflow with multiple NSID, COOKIE, PADDING EDNS options CVSS 4.0HIGH 8.7
  • TI-2026-36436 Routinator crashes on specifically crafted RRDP XML files CVSS 4.0HIGH 8.7
  • TI-2026-36433 Routinator exits when accepting an incoming HTTP or RTR connection fails CVSS 4.0HIGH 8.7
See all 96 →

Sources

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