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Fencer Intel
medium 4.2

CVE-2026-108830 json

meetecho janus-gateway VideoRoom janus_videoroom.c race condition

published 28d ago modified 27d ago also EUVD-2026-97353

cvss
4.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits
0
none known

Summary

A weakness has been identified in meetecho janus-gateway up to 1.4.2. This affects an unknown part of the file src/plugins/janus_videoroom.c of the component VideoRoom. This manipulation causes race condition. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is indicated that the exploitability is difficult. The exploit has been made available to the public and could be used for attacks. Patch name: 27c0d1af888153e818675b56a4e6267f62d57097. Applying a patch is the recommended action to fix this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Patch / fix

Is CVE-2026-108830 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
27d ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/meetecho/janus-gateway/blob/master/src/plugins/janus_videoroom.c referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 2.3 CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA 3.1 4.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C
CNA 3.0 4.2 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C
CNA 2.0 3.6 AV:N/AC:H/Au:S/C:N/I:P/A:P/E:POC/RL:OF/RC:C
CNA 4.0 1.3 CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA 3.1 4.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
CNA 2.0 3.6 AV:N/AC:H/Au:S/C:N/I:P/A:P

Affected products

  • meetecho janus-gateway

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.