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CVE Record

CVE-2026-68004: An issue in OSSRS SRS (Simple Realtime Server) <v5.0.213 allows a remote attacker to execute arbitrary code...

An issue in OSSRS SRS (Simple Realtime Server) <v5.0.213 allows a remote attacker to execute arbitrary code via RTMP publish authorization, vhost-level security configuration (security.enabled), SrsSecurity::check(), trunk/src/app/srs_app_security.cpp, and SRS RTMP listener components

CriticalCVSS 9.8Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

OSSRS SRS versions earlier than 5.0.213 reportedly contain a critical access-control flaw in RTMP publish authorization. An unauthenticated remote attacker could execute arbitrary code, potentially taking full control of a vulnerable streaming server and compromising its data, configuration, and availability.

Executive priority

Treat internet-reachable affected servers as an immediate remediation priority. The vulnerability requires no authentication or user interaction and carries potential full-system impact. Confirm exposure promptly, restrict RTMP access where feasible, and obtain vendor-confirmed remediation guidance.

Technical view

CVE-2026-68004 concerns RTMP publish authorization across vhost security configuration, security.enabled, SrsSecurity::check(), and SRS RTMP listener components. It is classified as CWE-284 with CVSS 3.1 score 9.8: network-accessible, low complexity, no privileges or user interaction, and high confidentiality, integrity, and availability impact.

Likely exposure

Exposure is highest where OSSRS SRS earlier than 5.0.213 has a reachable RTMP listener. The supplied record does not establish whether security.enabled is a prerequisite, an affected configuration element, or one part of the vulnerable authorization path.

Exploitation context

The supplied record indicates no CISA KEV listing and provides no evidence of active exploitation. A public GitHub repository dedicated to this CVE is referenced, suggesting technical information may be public, but the bundle does not establish exploit reliability or observed attacks.

Researcher notes

Record completeness is limited: structured affected fields contain n/a and no CPEs, while the title and description identify OSSRS SRS before 5.0.213. The bundle supplies no patch commit, confirmed prerequisites, indicators of compromise, or authoritative exploitation status. Validate the version boundary against official OSSRS guidance.

Mitigation direction

  • Identify all OSSRS SRS deployments and prioritize instances earlier than version 5.0.213.
  • Restrict untrusted network access to RTMP listeners while remediation is assessed and deployed.
  • Consult OSSRS release guidance and migrate to a vendor-confirmed non-affected release.
  • Monitor vulnerable servers closely until the version and exposure risks are resolved.

Validation and detection

  • Confirm the running SRS version from trusted deployment and asset records.
  • Map which RTMP listeners are reachable from untrusted networks.
  • Review vhost configurations for security.enabled and RTMP publish authorization usage.
  • After remediation, verify the running release is vendor-confirmed as non-affected.
  • Review telemetry for anomalous RTMP publishing activity; no specific indicators are supplied.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-284: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-68004 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
3Timeline events
1ADP providers
3Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2026-68004Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-284 · source CWE mapping

Improper Access Control

Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.