miroslavpejic85 MiroTalk P2P Socket I/O server.js CheckPassword access control
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fix or patch referenced
- Who is exposed
- Not reported
Do first: Apply the patch listed under Evidence.
- Exploitation?/40Exploitation: unknown (data gap). No CISA SSVC exploitation rating yet
- Exposure3/25Reachable over the network · Data gap: No advisory context yet
- Reach?/20Reach: unknown (data gap). No tracked technology or package matched
- Severity5.3/10CVSS 5.3
- No patch0/5No signal
What would change the score
- Would score about 63 if added to CISA KEV
- Would score about 58 if CISA's SSVC rates exploitation active
- Would score about 27 if advisories confirm default setups are exposed
CVE-2026-121539 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.3 (medium) and affects MiroTalk P2P; a fix or patch is referenced.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 8/100 · provisional
- Fix
- Fix or patch referenced
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
MiroTalk P2P, a browser-based peer-to-peer video calling application, has a flaw in its Socket.IO server handling that allows improper access control to be bypassed by manipulating the peer_id argument, and the attack can be launched remotely. This could let an attacker gain access that should be restricted to authorized users.
Read the original description
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.
What to do
Apply the patch listed under Evidence.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- 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, and 97 more
Evidence 6
- Advisory
- Advisory
- Advisory
- Advisory
- Patch
- Repository
Corrections
None so far.
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Questions about CVE-2026-121539
Is CVE-2026-121539 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by CVE-2026-121539?
MiroTalk P2P: versions 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4 and 122 more.Source: cve.now feed data