Vulnerability-Lookup

CVE-2026-45796 (GCVE-0-2026-45796)

Vulnerability from cvelistv5 – Published: 2026-07-07 21:03 – Updated: 2026-07-08 13:53

Title

Coder vulnerable to unauthenticated SSRF via Azure Instance Identity Endpoint

Summary

Coder allows organizations to provision remote development environments via Terraform. Versions prior tp 2.24.5, 2.29.13, 2.30.8, 2.31.12, 2.32.2, and 2.33.3 are vulnerable to unauthenticated semi-blind Server-Side Request Forgery (SSRF) via the Azure instance identity endpoint (`POST /api/v2/workspaceagents/azure-instance-identity`). An external attacker can force the Coder server to issue HTTP GET requests to arbitrary internal or external hosts by submitting a crafted PKCS#7 signature. The server does not return the target's response body, but error messages in the API response reveal whether the target is reachable and what type of failure occurred. Versions 2.24.5, 2.29.13, 2.30.8, 2.31.12, 2.32.2, and 2.33.3 patch the issue. As a workaround, if the Azure identity-auth mechanism is not being used then restrict access to the corresponding endpoint (`/api/v2/workspaceagents/azure-instance-identity`) using ingress firewall and/or proxy ACLs.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-08 13:53 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7817 records in the last 180 days details

References

9 references

URL	Tags
https://github.com/coder/coder/security/advisorie…	x_refsource_CONFIRM
https://github.com/coder/coder/pull/25274	x_refsource_MISC
https://github.com/coder/coder/commit/57b11d405f1…	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.24.5	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.29.13	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.30.8	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.31.12	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.32.2	x_refsource_MISC
https://github.com/coder/coder/releases/tag/v2.33.3	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
coder	coder	Affected: >= 2.33.0-rc.0, < 2.33.3 Affected: >= 2.32.0-rc.0, < 2.32.2 Affected: >= 2.31.0, < 2.31.12 Affected: >= 2.30.0, < 2.30.8 Affected: >= 2.29.0, < 2.29.13 Affected: < 2.24.5	guessed

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            {
              "name": "https://github.com/coder/coder/releases/tag/v2.31.12",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/coder/coder/releases/tag/v2.31.12"
            },
            {
              "name": "https://github.com/coder/coder/releases/tag/v2.32.2",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/coder/coder/releases/tag/v2.32.2"
            },
            {
              "name": "https://github.com/coder/coder/releases/tag/v2.33.3",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/coder/coder/releases/tag/v2.33.3"
            }
          ],
          "source": {
            "advisory": "GHSA-686c-7vgv-v3fx",
            "discovery": "UNKNOWN"
          },
          "title": "Coder vulnerable to unauthenticated SSRF via Azure Instance Identity Endpoint"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2026-45796",
        "datePublished": "2026-07-07T21:03:11.066Z",
        "dateReserved": "2026-05-13T08:19:32.603Z",
        "dateUpdated": "2026-07-08T13:53:41.602Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-45796

Vulnerability from fkie_nvd - Published: 2026-07-07 22:16 - Updated: 2026-07-08 19:47

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/coder/coder/commit/57b11d405f17492aa789d4b9ff33366f961a37f8	Patch
security-advisories@github.com	https://github.com/coder/coder/pull/25274	Issue Tracking, Patch
security-advisories@github.com	https://github.com/coder/coder/releases/tag/v2.24.5	Release Notes
security-advisories@github.com	https://github.com/coder/coder/releases/tag/v2.29.13	Release Notes
security-advisories@github.com	https://github.com/coder/coder/releases/tag/v2.30.8	Release Notes
security-advisories@github.com	https://github.com/coder/coder/releases/tag/v2.31.12	Release Notes
security-advisories@github.com	https://github.com/coder/coder/releases/tag/v2.32.2	Release Notes
security-advisories@github.com	https://github.com/coder/coder/releases/tag/v2.33.3	Release Notes
security-advisories@github.com	https://github.com/coder/coder/security/advisories/GHSA-686c-7vgv-v3fx	Patch, Vendor Advisory

Impacted products

Vendor	Product	Version
coder	coder	*
coder	coder	*
coder	coder	*
coder	coder	*
coder	coder	*
coder	coder	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "coder",
          "vendor": "coder",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.33.0-rc.0, \u003c 2.33.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.32.0-rc.0, \u003c 2.32.2"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.31.0, \u003c 2.31.12"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.30.0, \u003c 2.30.8"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.29.0, \u003c 2.29.13"
            },
            {
              "status": "affected",
              "version": "\u003c 2.24.5"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*",
              "matchCriteriaId": "38FD51E2-14DE-4C93-8EFC-267C222E06FE",
              "versionEndExcluding": "2.24.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*",
              "matchCriteriaId": "055001B5-79DC-4275-91EF-8D7C45FCA8ED",
              "versionEndExcluding": "2.29.13",
              "versionStartIncluding": "2.29.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*",
              "matchCriteriaId": "7646D2AE-2363-4C43-853A-4F61C95B253B",
              "versionEndExcluding": "2.30.8",
              "versionStartIncluding": "2.30.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*",
              "matchCriteriaId": "02976D4C-3CEB-430B-A464-141A28B2CBED",
              "versionEndExcluding": "2.31.12",
              "versionStartIncluding": "2.31.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*",
              "matchCriteriaId": "4498D465-4F7F-4786-8716-43A78FBC35B8",
              "versionEndExcluding": "2.32.2",
              "versionStartIncluding": "2.32.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*",
              "matchCriteriaId": "88AFFF26-1B74-4DD4-98C7-D5FE8F17CF00",
              "versionEndExcluding": "2.33.3",
              "versionStartIncluding": "2.33.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Coder allows organizations to provision remote development environments via Terraform. Versions prior tp 2.24.5, 2.29.13, 2.30.8, 2.31.12, 2.32.2, and 2.33.3 are vulnerable to unauthenticated semi-blind Server-Side Request Forgery (SSRF) via the Azure instance identity endpoint (`POST /api/v2/workspaceagents/azure-instance-identity`). An external attacker can force the Coder server to issue HTTP GET requests to arbitrary internal or external hosts by submitting a crafted PKCS#7 signature. The server does not return the target\u0027s response body, but error messages in the API response reveal whether the target is reachable and what type of failure occurred. Versions 2.24.5, 2.29.13, 2.30.8, 2.31.12, 2.32.2, and 2.33.3 patch the issue. As a workaround, if the Azure identity-auth mechanism is not being used then restrict access to the corresponding endpoint (`/api/v2/workspaceagents/azure-instance-identity`) using ingress firewall and/or proxy ACLs."
    }
  ],
  "id": "CVE-2026-45796",
  "lastModified": "2026-07-08T19:47:08.010",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-45796",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-08T13:53:31.695518Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-07T22:16:52.317",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/coder/coder/commit/57b11d405f17492aa789d4b9ff33366f961a37f8"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/coder/coder/pull/25274"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/coder/coder/releases/tag/v2.24.5"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/coder/coder/releases/tag/v2.29.13"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/coder/coder/releases/tag/v2.30.8"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/coder/coder/releases/tag/v2.31.12"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/coder/coder/releases/tag/v2.32.2"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/coder/coder/releases/tag/v2.33.3"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/coder/coder/security/advisories/GHSA-686c-7vgv-v3fx"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-686C-7VGV-V3FX

Vulnerability from github – Published: 2026-05-19 19:53 – Updated: 2026-05-19 19:53

Summary

Coder: Unauthenticated SSRF via Azure Instance Identity Endpoint

Details

Summary

Unauthenticated semi-blind Server-Side Request Forgery (SSRF) via the Azure instance identity endpoint (POST /api/v2/workspaceagents/azure-instance-identity). An external attacker can force the Coder server to issue HTTP GET requests to arbitrary internal or external hosts by submitting a crafted PKCS#7 signature. The server does not return the target's response body, but error messages in the API response reveal whether the target is reachable and what type of failure occurred.

Details

The POST /api/v2/workspaceagents/azure-instance-identity endpoint accepts a PKCS#7 signature without authentication. During certificate chain verification, azureidentity.Validate() iterates over the signer certificate's IssuingCertificateURL extension and fetches each URL using http.DefaultClient with no host restriction, no private-IP blocking, and no response-size limit.

An attacker crafts a self-signed certificate whose Common Name matches *.metadata.azure.com (passing the allowedSigners regex) and whose IssuingCertificateURL points to an attacker-chosen target. The server fetches that URL and feeds the response body into x509.ParseCertificate. The parsed result is discarded, but the wrapped error string is returned verbatim in the JSON response via Detail: err.Error(). Connection-level errors ("connection refused", "i/o timeout", DNS failures) and certificate-parse errors give the attacker enough signal to infer host reachability and port state without seeing the actual response content.

Root causes:

No allowlist on IssuingCertificateURL hosts. Any URL was accepted.
http.DefaultClient was used. It follows redirects and connects to private, link-local, and loopback addresses.
Unbounded io.ReadAll on the response body (memory exhaustion vector).
Raw err.Error() was returned in the JSON response, leaking internal HTTP client errors to the caller.

Impact

This is a semi-blind SSRF: the server makes the outbound request but the HTTP response body is consumed by x509.ParseCertificate and never returned to the attacker.

Internal network reconnaissance. The attacker can map internal hosts and ports by observing error differentiation in the API response: "connection refused" (port closed), "i/o timeout" (host unreachable or firewalled), DNS failure (host does not exist), or certificate-parse error (port open and responding). This enables systematic scanning of the internal network from the Coder server's vantage point.
Requests to sensitive endpoints. The server can be directed to hit cloud metadata services (e.g. http://169.254.169.254/), internal admin interfaces, or other services. The attacker cannot read the response content, but the request itself may have side effects depending on the target.
Error-based information disclosure. Wrapped Go HTTP client errors in the Detail field expose internal hostnames, IP addresses, port numbers, and network topology details.
Memory exhaustion. The unbounded io.ReadAll on the response body allows an attacker to point IssuingCertificateURL at a large resource, forcing the server to buffer it entirely in memory.

Patches

Fixed in #25274 (commit 57b11d405):

The fix was backported to all supported release lines:

Release line	Patched version
2.33	v2.33.3
2.32	v2.32.2
2.31	v2.31.12
2.30	v2.30.8
2.29	v2.29.13
2.24 (ESR)	v2.24.5

Workarounds

If the Azure identity-auth mechanism is not being used then restrict access to the corresponding endpoint (/api/v2/workspaceagents/azure-instance-identity) using ingress firewall and/or proxy ACLs.

Recognition

We'd like to thank Ben Tran of calif.io and Anthropic's Security Team (ANT-2026-22447) for independently disclosing this issue!

Severity

6.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/coder/coder/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.33.0-rc.0"
            },
            {
              "fixed": "2.33.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/coder/coder/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.32.0-rc.0"
            },
            {
              "fixed": "2.32.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/coder/coder/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.31.0"
            },
            {
              "fixed": "2.31.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/coder/coder/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.30.0"
            },
            {
              "fixed": "2.30.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/coder/coder/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.29.0"
            },
            {
              "fixed": "2.29.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/coder/coder/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.24.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/coder/coder"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.27.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-45796"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-19T19:53:51Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nUnauthenticated semi-blind Server-Side Request Forgery (SSRF) via the Azure instance identity endpoint (`POST /api/v2/workspaceagents/azure-instance-identity`). An external attacker can force the Coder server to issue HTTP GET requests to arbitrary internal or external hosts by submitting a crafted PKCS#7 signature. The server does not return the target\u0027s response body, but error messages in the API response reveal whether the target is reachable and what type of failure occurred.\n\n## Details\n\nThe `POST /api/v2/workspaceagents/azure-instance-identity` endpoint accepts a PKCS#7 signature without authentication. During certificate chain verification, [`azureidentity.Validate()`](https://github.com/coder/coder/blob/aa0e288b88/coderd/azureidentity/azureidentity.go#L83-L88) iterates over the signer certificate\u0027s `IssuingCertificateURL` extension and fetches each URL using `http.DefaultClient` with no host restriction, no private-IP blocking, and no response-size limit.\n\nAn attacker crafts a self-signed certificate whose Common Name matches `*.metadata.azure.com` (passing the `allowedSigners` regex) and whose `IssuingCertificateURL` points to an attacker-chosen target. The server fetches that URL and feeds the response body into `x509.ParseCertificate`. The parsed result is discarded, but the wrapped error string is returned verbatim in the JSON response via `Detail: err.Error()`. Connection-level errors (\"connection refused\", \"i/o timeout\", DNS failures) and certificate-parse errors give the attacker enough signal to infer host reachability and port state without seeing the actual response content.\n\n**Root causes:**\n\n1. No allowlist on `IssuingCertificateURL` hosts. Any URL was accepted.\n2. `http.DefaultClient` was used. It follows redirects and connects to private, link-local, and loopback addresses.\n3. Unbounded `io.ReadAll` on the response body (memory exhaustion vector).\n4. Raw `err.Error()` was returned in the JSON response, leaking internal HTTP client errors to the caller.\n\n## Impact\n\nThis is a semi-blind SSRF: the server makes the outbound request but the HTTP response body is consumed by `x509.ParseCertificate` and never returned to the attacker.\n\n- **Internal network reconnaissance.** The attacker can map internal hosts and ports by observing error differentiation in the API response: \"connection refused\" (port closed), \"i/o timeout\" (host unreachable or firewalled), DNS failure (host does not exist), or certificate-parse error (port open and responding). This enables systematic scanning of the internal network from the Coder server\u0027s vantage point.\n- **Requests to sensitive endpoints.** The server can be directed to hit cloud metadata services (e.g. `http://169.254.169.254/`), internal admin interfaces, or other services. The attacker cannot read the response content, but the request itself may have side effects depending on the target.\n- **Error-based information disclosure.** Wrapped Go HTTP client errors in the `Detail` field expose internal hostnames, IP addresses, port numbers, and network topology details.\n- **Memory exhaustion.** The unbounded `io.ReadAll` on the response body allows an attacker to point `IssuingCertificateURL` at a large resource, forcing the server to buffer it entirely in memory.\n\n## Patches\n\nFixed in [#25274](https://github.com/coder/coder/pull/25274) (commit [`57b11d405`](https://github.com/coder/coder/commit/57b11d405f17492aa789d4b9ff33366f961a37f8)):\n\nThe fix was backported to all supported release lines:\n\n| Release line | Patched version |\n|---|---|\n| 2.33 | [v2.33.3](https://github.com/coder/coder/releases/tag/v2.33.3) |\n| 2.32 | [v2.32.2](https://github.com/coder/coder/releases/tag/v2.32.2) |\n| 2.31 | [v2.31.12](https://github.com/coder/coder/releases/tag/v2.31.12) |\n| 2.30 | [v2.30.8](https://github.com/coder/coder/releases/tag/v2.30.8) |\n| 2.29 | [v2.29.13](https://github.com/coder/coder/releases/tag/v2.29.13) |\n| 2.24 (ESR) | [v2.24.5](https://github.com/coder/coder/releases/tag/v2.24.5) |\n\n## Workarounds\n\nIf the Azure identity-auth mechanism is not being used then restrict access to the corresponding endpoint (`/api/v2/workspaceagents/azure-instance-identity`) using ingress firewall and/or proxy ACLs.\n\n### Recognition\n\nWe\u0027d like to thank [Ben Tran](https://github.com/bencalif) of [calif.io](http://calif.io/) and Anthropic\u0027s Security Team (`ANT-2026-22447`) for independently disclosing this issue!",
  "id": "GHSA-686c-7vgv-v3fx",
  "modified": "2026-05-19T19:53:51Z",
  "published": "2026-05-19T19:53:51Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/coder/coder/security/advisories/GHSA-686c-7vgv-v3fx"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coder/coder/pull/25274"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coder/coder/commit/57b11d405f17492aa789d4b9ff33366f961a37f8"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/coder/coder"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coder/coder/releases/tag/v2.24.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coder/coder/releases/tag/v2.29.13"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coder/coder/releases/tag/v2.30.8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coder/coder/releases/tag/v2.31.12"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coder/coder/releases/tag/v2.32.2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/coder/coder/releases/tag/v2.33.3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Coder: Unauthenticated SSRF via Azure Instance Identity Endpoint"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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

CVE-2026-45796 (GCVE-0-2026-45796)

FKIE_CVE-2026-45796

GHSA-686C-7VGV-V3FX

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Related by attack behaviour