TI-2026-84844 Aliases CVE-2026-121539 GHSA-9424-gw4p-87w3

Improper access control in MiroTalk P2P Socket IO handler

LOW 23CWE-266Published 2026-11-03 · Updated 2026-11-07

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Privilege escalation, Security bypass
Confidentiality · integrity · availability: Low · Low · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266 and CWE-284.

Summary

In miroslavpejic85 MiroTalk P2P up to 2.0.87 and up to 2.1.38, the CheckPassword function in app/src/server.js does not enforce proper access controls when it handles the peer_id argument (CWE-284). A remote attacker with low privileges can trigger the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

A vulnerability was found in miroslavpejic85 MiroTalk P2P up to 2.0.87/2.1.38. Affected by this issue is the function CheckPassword of the file app/src/server.js of the component Socket IO Handler. Performing a manipulation of the argument peer_id results in improper access controls. It is possible to initiate the attack remotely. Upgrading to version 2.1.39 can resolve this issue. The patch is named 4e40471abc48bfc32b4b174b8844716dfc5c1471. You should upgrade the affected component.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00209 11th percentileScored 2026-11-07

Fix Fixed MiroTalk P2P (miroslavpejic85): 2.1.39

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

Vendor	Product	Affected versions	Fixed in	Status	Source
miroslavpejic85	MiroTalk P2P	2.0.0; 2.0.1; 2.0.2; 2.0.3; 2.0.4; 2.0.5; 2.0.6; 2.0.7; 2.0.8; 2.0.9; 2.0.10; 2.0.11; 2.0.12; 2.0.13; 2.0.14; 2.0.15; 2.0.16; 2.0.17; 2.0.18; 2.0.19; 2.0.20; 2.0.21; 2.0.22; 2.0.23; 2.0.24; 2.0.25; 2.0.26; 2.0.27; 2.0.28; 2.0.29; 2.0.30; 2.0.31; 2.0.32; 2.0.33; 2.0.34; 2.0.35; 2.0.36; 2.0.37; 2.0.38; 2.0.39; 2.0.40; 2.0.41; 2.0.42; 2.0.43; 2.0.44; 2.0.45; 2.0.46; 2.0.47; 2.0.48; 2.0.49; 2.0.50; 2.0.51; 2.0.52; 2.0.53; 2.0.54; 2.0.55; 2.0.56; 2.0.57; 2.0.58; 2.0.59; 2.0.60; 2.0.61; 2.0.62; 2.0.63; 2.0.64; 2.0.65; 2.0.66; 2.0.67; 2.0.68; 2.0.69; 2.0.70; 2.0.71; 2.0.72; 2.0.73; 2.0.74; 2.0.75; 2.0.76; 2.0.77; 2.0.78; 2.0.79; 2.0.80; 2.0.81; 2.0.82; 2.0.83; 2.0.84; 2.0.85; 2.0.86; 2.0.87; 2.1.0; 2.1.1; 2.1.2; 2.1.3; 2.1.4; 2.1.5; 2.1.6; 2.1.7; 2.1.8; 2.1.9; 2.1.10; 2.1.11; 2.1.12; 2.1.13; 2.1.14; 2.1.15; 2.1.16; 2.1.17; 2.1.18; 2.1.19; 2.1.20; 2.1.21; 2.1.22; 2.1.23; 2.1.24; 2.1.25; 2.1.26; 2.1.27; 2.1.28; 2.1.29; 2.1.30; 2.1.31; 2.1.32; 2.1.33; 2.1.34; 2.1.35; 2.1.36; 2.1.37; 2.1.38	2.1.39	Patch available	CNA

MiroTalk P2P Vendormiroslavpejic85 Affected 2.0.0; 2.0.1; 2.0.2; 2.0.3; 2.0.4; 2.0.5; 2.0.6; 2.0.7; 2.0.8; 2.0.9; 2.0.10; 2.0.11; 2.0.12; 2.0.13; 2.0.14; 2.0.15; 2.0.16; 2.0.17; 2.0.18; 2.0.19; 2.0.20; 2.0.21; 2.0.22; 2.0.23; 2.0.24; 2.0.25; 2.0.26; 2.0.27; 2.0.28; 2.0.29; 2.0.30; 2.0.31; 2.0.32; 2.0.33; 2.0.34; 2.0.35; 2.0.36; 2.0.37; 2.0.38; 2.0.39; 2.0.40; 2.0.41; 2.0.42; 2.0.43; 2.0.44; 2.0.45; 2.0.46; 2.0.47; 2.0.48; 2.0.49; 2.0.50; 2.0.51; 2.0.52; 2.0.53; 2.0.54; 2.0.55; 2.0.56; 2.0.57; 2.0.58; 2.0.59; 2.0.60; 2.0.61; 2.0.62; 2.0.63; 2.0.64; 2.0.65; 2.0.66; 2.0.67; 2.0.68; 2.0.69; 2.0.70; 2.0.71; 2.0.72; 2.0.73; 2.0.74; 2.0.75; 2.0.76; 2.0.77; 2.0.78; 2.0.79; 2.0.80; 2.0.81; 2.0.82; 2.0.83; 2.0.84; 2.0.85; 2.0.86; 2.0.87; 2.1.0; 2.1.1; 2.1.2; 2.1.3; 2.1.4; 2.1.5; 2.1.6; 2.1.7; 2.1.8; 2.1.9; 2.1.10; 2.1.11; 2.1.12; 2.1.13; 2.1.14; 2.1.15; 2.1.16; 2.1.17; 2.1.18; 2.1.19; 2.1.20; 2.1.21; 2.1.22; 2.1.23; 2.1.24; 2.1.25; 2.1.26; 2.1.27; 2.1.28; 2.1.29; 2.1.30; 2.1.31; 2.1.32; 2.1.33; 2.1.34; 2.1.35; 2.1.36; 2.1.37; 2.1.38 Fixed in 2.1.39 Patch available CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:miroslavpejic85:mirotalk_p2p::::::::	—	—	miroslavpejic85

cpe:2.3:a:miroslavpejic85:mirotalk_p2p:*:*:*:*:*:*:*:* Versions — — ·miroslavpejic85

Remediation

Upgrade MiroTalk P2P to version 2.1.39, which includes the patch 4e40471abc48bfc32b4b174b8844716dfc5c1471.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Fix · CNA MiroTalk P2P (miroslavpejic85) Fixed in 2.1.39

Timeline

2026-11-03 Threatist record created from CVE-2026-121539
2026-11-04 Alias added: GHSA-9424-gw4p-87w3
2026-11-07 CISA SSVC decision points changed

References

Patch 1

https://github.com/miroslavpejic85/mirotalk/commit/4e40471abc48bfc32b4b174b8844716dfc5c1471

Other 1

https://github.com/waterhunter2000-svg/vulnerability-reports

TI-2026-84835 MiroTalk P2P lets attackers make excessive password check attempts CVSS 4.0MEDIUM 6.3

Sources

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