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TI-2023-20815 Aliases CVE-2023-39916GHSA-5rxf-fqch-7vqp

Possible path traversal when storing RRDP responses

Priority MEDIUM 41CWE-35Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

NLnet Labs’ Routinator 0.9.0 up to and including 0.12.1 as well as 0.14.0 up to and including 0.14.2 contains a possible path traversal vulnerability in the optional, off-by-default keep-rrdp-responses feature that allows users to store the content of responses received for RRDP requests. The location of these stored responses is constructed from the URL of the request. Due to insufficient sanitation of the URL, it is possible for an attacker to craft a URL that results in the response being stored outside of the directory specified for it.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00643 51st percentileScored 2026-11-07
Fix Fixed Routinator (NLnet Labs): 0.12.2routinator (crates.io): 0.12.2

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 LabsRoutinator0.9.0 to before 0.12.2; all versions0.12.2Patch availableCNA
—routinator (crates.io)0.9.0 to before 0.12.20.12.2Patch availableGHSA-5rxf-fqch-7vqp
  • Routinator VendorNLnet Labs Affected 0.9.0 to before 0.12.2; all versions Fixed in 0.12.2 Patch available CNA
  • routinator (crates.io) Vendor— Affected 0.9.0 to before 0.12.2 Fixed in 0.12.2 Patch available GHSA-5rxf-fqch-7vqp

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nlnetlabs:routinator:*:*:*:*:*:*:*:*0.9.0 to before 0.12.2VulnerableNLNETLABS
  • cpe:2.3:a:nlnetlabs:routinator:*:*:*:*:*:*:*:* Versions 0.9.0 to before 0.12.2 Vulnerable ·NLNETLABS

Remediation

  • Fix · CNA Routinator (NLnet Labs) Fixed in 0.12.2
  • Fix · GHSA-5rxf-fqch-7vqp routinator (crates.io) Fixed in 0.12.2 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    NLnet Labs Routinator 0.12.2

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2023-20814 Crashes on parsing certain invalid RPKI objectsPriority MEDIUM 40
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-39916
  2. 2026-10-03 Alias added: GHSA-5rxf-fqch-7vqp
  3. 2026-10-21 EPSS moved to the 50th–90th percentile

References

Advisory 2

Other 3

  • 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