Vulnerability-Lookup

OPENSUSE-SU-2026:11849-1

Vulnerability from csaf_opensuse - Published: 2026-09-22 00:00 - Updated: 2026-09-23 08:33

Summary

openai-codex-0.155.1-1.1 on GA media

Severity

Moderate

Notes

Title of the patch: openai-codex-0.155.1-1.1 on GA media

Description of the patch: These are all security issues fixed in the openai-codex-0.155.1-1.1 package on the GA media of openSUSE Tumbleweed.

Patchnames: openSUSE-Tumbleweed-2026-11849

CVE-2026-63127

Affected products

Recommended 16 products

Product	Version	Remediation
Unresolved product id: openSUSE Tumbleweed:openai-codex-0:0.155.1-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-0:0.155.1-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-0:0.155.1-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-0:0.155.1-1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-bash-completion-0:0.155.1-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-bash-completion-0:0.155.1-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-bash-completion-0:0.155.1-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-bash-completion-0:0.155.1-1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-fish-completion-0:0.155.1-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-fish-completion-0:0.155.1-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-fish-completion-0:0.155.1-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-fish-completion-0:0.155.1-1.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-zsh-completion-0:0.155.1-1.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-zsh-completion-0:0.155.1-1.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-zsh-completion-0:0.155.1-1.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:openai-codex-zsh-completion-0:0.155.1-1.1.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2026-63128

Affected products

Recommended 16 products, the same list as for CVE-2026-63127

Threats

Impact important

CVE-2026-64684

Affected products

Recommended 16 products, the same list as for CVE-2026-63127

Threats

Impact important

References

11 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://www.suse.com/security/cve/CVE-2026-63127/	self
https://www.suse.com/security/cve/CVE-2026-63128/	self
https://www.suse.com/security/cve/CVE-2026-64684/	self
https://www.suse.com/security/cve/CVE-2026-63127	external
https://bugzilla.suse.com/1281060	external
https://www.suse.com/security/cve/CVE-2026-63128	external
https://bugzilla.suse.com/1281060	external
https://www.suse.com/security/cve/CVE-2026-64684	external
https://bugzilla.suse.com/1281060	external

JSON

To clipboard

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CVE-2026-63127 (GCVE-0-2026-63127)

Vulnerability from cvelistv5 – Published: 2026-09-16 14:50 – Updated: 2026-09-16 15:39

Title

RMCP: Missing Resource Field Validation in OAuth Protected Resource Metadata Discovery

Summary

RMCP is an official Rust SDK for the Model Context Protocol. Prior to 2.0.0, the rmcp crate's OAuth implementation in crates/rmcp/src/transport/auth.rs omits the RFC 9728 resource field from ResourceServerMetadata and allows discover_oauth_server_via_resource_metadata to use protected-resource metadata without confirming that the returned resource identifier exactly matches the configured MCP server. A malicious MCP server can publish metadata for a different legitimate MCP resource and its authorization server, causing a victim who connects and completes the authorization flow to obtain a legitimate access token that the client subsequently sends to the malicious server. The attacker can capture the token and impersonate the victim against the legitimate MCP resource within the token's granted scopes. This issue is fixed in version 2.0.0.

Severity

8.2 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-16 15:38 UTC

CWE

CWE-345 - Insufficient Verification of Data Authenticity

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/modelcontextprotocol/rust-sdk/…	x_refsource_CONFIRM
https://github.com/modelcontextprotocol/rust-sdk/…	x_refsource_MISC
https://github.com/modelcontextprotocol/rust-sdk/…	x_refsource_MISC
https://github.com/modelcontextprotocol/rust-sdk/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
modelcontextprotocol	rust-sdk	Affected: < 2.0.0

Show details on NVD website

JSON

To clipboard

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    "dateReserved": "2026-07-15T16:54:55.816Z",
    "dateUpdated": "2026-09-16T15:39:26.956Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

CVE-2026-63128 (GCVE-0-2026-63128)

Vulnerability from cvelistv5 – Published: 2026-09-16 14:49 – Updated: 2026-09-16 15:18

Title

RMCP: Unauthenticated permanent session-table leak in rmcp Streamable HTTP server transport leads to remote denial-of-service

Summary

RMCP is an official Rust SDK for the Model Context Protocol. Prior to 2.0.0, the rmcp crate's stateful Streamable HTTP server in crates/rmcp/src/transport/streamable_http_server/tower.rs allows an unauthenticated client to send a well-formed JSON-RPC POST that is not an initialization request, or an initialization request with a mismatched protocol header, causing StreamableHttpService::handle_post to call LocalSessionManager.create_session before validating the message. An early validation failure returns without removing the inserted LocalSessionHandle from LocalSessionManager.sessions, permanently retaining session and channel state for the server process lifetime. Repeated requests can grow the shared session table without bound, degrade legitimate-client latency through lock contention, exhaust memory, and terminate the server. This issue is fixed in version 2.0.0.

Severity

7.5 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-16 15:18 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-401 - Missing Release of Memory after Effective Lifetime
CWE-772 - Missing Release of Resource after Effective Lifetime

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/modelcontextprotocol/rust-sdk/…	x_refsource_CONFIRM
https://github.com/modelcontextprotocol/rust-sdk/…	x_refsource_MISC
https://github.com/modelcontextprotocol/rust-sdk/…	x_refsource_MISC
https://github.com/modelcontextprotocol/rust-sdk/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
modelcontextprotocol	rust-sdk	Affected: < 2.0.0

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
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                "id": "CVE-2026-63128",
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                  },
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                "version": "2.0.3"
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CVE-2026-64684 (GCVE-0-2026-64684)

Vulnerability from cvelistv5 – Published: 2026-09-16 21:18 – Updated: 2026-09-19 01:56

Title

RMCP: Custom HTTP headers leak to cross-origin redirect targets

Summary

RMCP is an official Rust SDK for the Model Context Protocol. Prior to 2.1.0, the rmcp crate's StreamableHttpClientTransport in crates/rmcp/src/transport/common/reqwest/streamable_http_client.rs builds its default_http_client with reqwest's automatic redirect policy and applies caller-supplied values from StreamableHttpClientTransportConfig.custom_headers without marking them as sensitive. When a malicious or compromised MCP endpoint returns a cross-origin 307 or 308 redirect, reqwest follows the redirect and apply_custom_headers causes custom API keys or authentication tokens to be replayed to the new origin, where an attacker can capture and reuse them. The separate auth_header path is not affected because it uses the standard Authorization header, which reqwest strips on cross-origin redirects. This issue is fixed in version 2.1.0.

Severity

6.8 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-19 01:56 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/modelcontextprotocol/rust-sdk/…	x_refsource_CONFIRM
https://github.com/modelcontextprotocol/rust-sdk/…	x_refsource_MISC
https://github.com/modelcontextprotocol/rust-sdk/…	x_refsource_MISC
https://github.com/modelcontextprotocol/rust-sdk/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
modelcontextprotocol	rust-sdk	Affected: < 2.1.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
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                "id": "CVE-2026-64684",
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                "timestamp": "2026-09-19T01:56:38.766580Z",
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        }
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          "url": "https://github.com/modelcontextprotocol/rust-sdk/security/advisories/GHSA-9g45-5xwm-f3wc"
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        {
          "name": "https://github.com/modelcontextprotocol/rust-sdk/pull/936",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OPENSUSE-SU-2026:11849-1

CVE-2026-63127 (GCVE-0-2026-63127)

CVE-2026-63128 (GCVE-0-2026-63128)

CVE-2026-64684 (GCVE-0-2026-64684)

Tags

Sightings

Nomenclature

Related by attack behaviour