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01 Record

CVE-2020-26262

Loopback bypass in Coturn

HighPUBLISHEDCNA: GitHub_M
CNA base score7.2 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

02 Description

Loopback bypass in Coturn

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.54% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 74.7% of scored records. A rank, not a probability.
NVD base score
7.2 (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:C/C:L/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
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
2021-01-13 18:15Z5 YR AGO
Last updated
2024-08-04 15:56Z2 YR AGO
Reserved
2020-10-01
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 7.2)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Weaknesses
  • CWE-441Unintended Proxy or Intermediary ('Confused Deputy')Class
  • CWE-682Incorrect CalculationPillar
Data version
5.1
Document digest
61f7889a2f235c7a9ece3ec400d024c209382498a5b2a034489f31503581f978

05 Affected products

VendorProductVersionsPlatforms
coturncoturn< 4.5.2—

06 References

07 Fixed in

Arch Linux

  • coturn
    Fixed in 4.5.2-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

Debian 12

  • coturn
    Fixed in 4.5.2-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • coturn
    Fixed in 4.5.2-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • coturn
    Fixed in 4.5.2-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • coturn
    Fixed in 4.5.0.3-1ubuntu0.4

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • coturn
    Fixed in 4.5.0.7-1ubuntu2.18.04.3

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • coturn
    Fixed in 4.5.1.1-1.1ubuntu0.20.04.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.