01 Record
CVE-2026-72757
Routinator HTTP server becomes unavailable with many unclosed connections
MediumPUBLISHEDCNA: NLnet Labs
CNA base score5.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
02 Description
Routinator HTTP server becomes unavailable with many unclosed connections
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.35% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 29.4% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-26.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-26 17:07Z2 DAYS AGO
- Last updated
- 2026-10-26 17:57Z2 DAYS AGO
- Reserved
- 2026-08-10
- Assigning CNA
- NLnet Labs
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-755Improper Handling of Exceptional ConditionsClass
- Data version
- 5.2
- Document digest
- 3c75b81ef4026f30a1b6839a98c091b5cf2fcbddb56317c613822fdd5cf1309e
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.nlnetlabs.nlhttps://www.nlnetlabs.nl/downloads/routinator/CVE-2026-72756.txt
07 Remediation
This issue is fixed in 0.15.3 and all later versions.