# CVE-2026-121539: miroslavpejic85 MiroTalk P2P Socket I/O server.js CheckPassword access control

Status: published. Published: 2026-11-03. Updated: 2026-11-03.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulDB) — https://github.com/miroslavpejic85/mirotalk/commit/4e40471abc48bfc32b4b174b8844716dfc5c1471

## Affected products and versions

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

## Severity and prioritization

- CVSS 4.0: 5.3 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X; source: CNA: VulDB

- CVSS 3.1: 6.3 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C; source: CNA: VulDB

- CVSS 3.0: 6.3 (medium); CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C; source: CNA: VulDB

- CVSS 2.0: 6.5 (medium); AV:N/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C; source: CNA: VulDB

- CVSS 4.0: 5.3 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/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; source: NVD: cna@vuldb.com

- CVSS 3.1: 6.3 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L; source: NVD: cna@vuldb.com

- CVSS 2.0: 6.5 (medium); AV:N/AC:L/Au:S/C:P/I:P/A:P; source: NVD: cna@vuldb.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-284, CWE-266

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://vuldb.com/vuln/430300 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/430300/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-121539 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1019996 (CNA: VulDB; third-party-advisory)

- https://github.com/waterhunter2000-svg/vulnerability-reports (CNA: VulDB; related)

- https://github.com/miroslavpejic85/mirotalk/commit/4e40471abc48bfc32b4b174b8844716dfc5c1471 (CNA: VulDB; patch)

- https://github.com/miroslavpejic85/mirotalk/commit/4e40471abc48bfc32b4b174b8844716dfc5c1471 (cna@vuldb.com)

- https://github.com/waterhunter2000-svg/vulnerability-reports (cna@vuldb.com)

- https://vuldb.com/cve/CVE-2026-121539 (cna@vuldb.com)

- https://vuldb.com/submit/1019996 (cna@vuldb.com)

- https://vuldb.com/vuln/430300 (cna@vuldb.com)

- https://vuldb.com/vuln/430300/cti (cna@vuldb.com)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-121539; retrieved 2026-11-03; source updated 2026-11-03

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-121539; retrieved 2026-11-04; source updated 2026-11-03

Revision: 88975a353032df2d0d5fdf8b0f616a4df6073e7431292375ab2f99f9e507d27a

Canonical: https://y2.dev/cve/CVE-2026-121539

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