{"items":[{"id":"NVI-00017638","kind":"vulnerability","title":"Lemur: Crafted CRL/OCSP URLs in uploaded certificates lead to post-authentication SSRF","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-54vg-pfh7-jq95","CVE-2026-55162"],"plain_summary":"GitHub lists this reviewed advisory for lemur. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-00ed5e52a17df74b888f38e47bb75e78"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-25T21:58:51.000Z","value":"6.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-362ad643387e733ccdc8325d6803e385"},{"kind":"EPSS","as_of":"2026-11-06T12:00:23.000Z","value":"0.216%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.12106. Missing scores are unknown.","source_id":"sr-00ed5e52a17df74b888f38e47bb75e78"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-362ad643387e733ccdc8325d6803e385","url":"https://github.com/advisories/GHSA-54vg-pfh7-jq95","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-54vg-pfh7-jq95","publisher":"GitHub Advisory Database","observed_at":"2026-11-05T19:05:53.922Z"},{"id":"sr-00ed5e52a17df74b888f38e47bb75e78","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-55162","publisher":"FIRST EPSS","observed_at":"2026-11-07T00:50:47.042Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-362ad643387e733ccdc8325d6803e385"],"technology":"lemur","known_exclusions":[],"conditions_summary":"## Summary\n \nWhen verifying an uploaded certificate, `lemur/certificates/verify.py` extracts the CRL Distribution Point URL and the OCSP responder URL directly from the certificate's extensions and issues outbound requests to those URLs without scheme restriction or destination allow-listing. An authenticated user holding the operator role (required by `StrictRolePermission` on `POST /certificates/upload`) can craft a certificate whose extensions point at internal services - instance metadata endpoints, internal Kubernetes API servers, RFC1918 hosts, link-local addresses - and cause the Lemur host to issue requests against those destinations during verification.\n \n## Root Cause\n \n`lemur/certificates/verify.py`, `crl_verify`:\n \n```python\npoint = p.full_name[0].value                          # URL from CDP extension of uploaded cert\n...\nresponse = requests.get(point, timeout=(3.05, 6))     # no allow-list, no destination filter\n```\n \n`lemur/certificates/verify.py`, `ocsp_verify`:\n \n```python\ncommand = [\"openssl\", \"x509\", \"-noout\", \"-ocsp_uri\", \"-in\", cert_path]\np1 = subprocess.Popen(command, stdout=subprocess.PIPE, ...)\nurl, _ = p1.communicate()\np2 = subprocess.Popen(\n    [\"openssl\",","public_affected_ranges":["<= 1.9.1"]}],"null_published_at":"2026-11-07T22:29:26.077Z","source_updated_at":"2026-06-25T21:58:51.000Z","source_disclosed_at":"2026-06-25T21:58:51.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-05T19:05:53.922Z"},{"id":"NVI-00017638","kind":"vulnerability","title":"Lemur: Crafted CRL/OCSP URLs in uploaded certificates lead to post-authentication SSRF","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-54vg-pfh7-jq95","CVE-2026-55162"],"plain_summary":"GitHub lists this reviewed advisory for lemur. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-362ad643387e733ccdc8325d6803e385"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-25T21:58:51.000Z","value":"6.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-362ad643387e733ccdc8325d6803e385"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-362ad643387e733ccdc8325d6803e385","url":"https://github.com/advisories/GHSA-54vg-pfh7-jq95","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-54vg-pfh7-jq95","publisher":"GitHub Advisory Database","observed_at":"2026-11-05T19:05:53.922Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-362ad643387e733ccdc8325d6803e385"],"technology":"lemur","known_exclusions":[],"conditions_summary":"## Summary\n \nWhen verifying an uploaded certificate, `lemur/certificates/verify.py` extracts the CRL Distribution Point URL and the OCSP responder URL directly from the certificate's extensions and issues outbound requests to those URLs without scheme restriction or destination allow-listing. An authenticated user holding the operator role (required by `StrictRolePermission` on `POST /certificates/upload`) can craft a certificate whose extensions point at internal services - instance metadata endpoints, internal Kubernetes API servers, RFC1918 hosts, link-local addresses - and cause the Lemur host to issue requests against those destinations during verification.\n \n## Root Cause\n \n`lemur/certificates/verify.py`, `crl_verify`:\n \n```python\npoint = p.full_name[0].value                          # URL from CDP extension of uploaded cert\n...\nresponse = requests.get(point, timeout=(3.05, 6))     # no allow-list, no destination filter\n```\n \n`lemur/certificates/verify.py`, `ocsp_verify`:\n \n```python\ncommand = [\"openssl\", \"x509\", \"-noout\", \"-ocsp_uri\", \"-in\", cert_path]\np1 = subprocess.Popen(command, stdout=subprocess.PIPE, ...)\nurl, _ = p1.communicate()\np2 = subprocess.Popen(\n    [\"openssl\",","public_affected_ranges":["<= 1.9.1"]}],"null_published_at":"2026-11-05T19:10:21.429Z","source_updated_at":"2026-06-25T21:58:51.000Z","source_disclosed_at":"2026-06-25T21:58:51.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-05T19:05:53.922Z"}],"next_cursor":null,"snapshot_revision":"42594"}