{"schema_version":1,"title":"github.com/sigstore/cosign/v2 (Go) vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 6 vulnerabilities in github.com/sigstore/cosign/v2 (Go): 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-39395, was published on 7 April 2026.","url":"https://junglewise.ai/threats/technologies/github-com-sigstore-cosign-v2","json_url":"https://junglewise.ai/threats/technologies/github-com-sigstore-cosign-v2.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/github-com-sigstore-cosign-v2","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":6,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":3},"latest":[{"cve":"CVE-2026-39395","cvss":4.3,"epss":0.0029,"slug":"cve-2026-39395-sigstore-cosign-validation-bypass-in-verify-blob-attestation","title":"Sigstore Cosign validation bypass in verify-blob-attestation","severity":"medium","exploited":false,"published_at":"2026-04-07T20:16:33.14+00:00","url":"https://junglewise.ai/threats/cve-2026-39395-sigstore-cosign-validation-bypass-in-verify-blob-attestation"},{"cve":"CVE-2026-24122","cvss":3.1,"epss":0.0021,"slug":"cve-2026-24122-cosign-considered-signatures-valid-with-expired-intermediate","title":"GO-2026-4529 - Cosign considered signatures valid with expired intermediate certificates when transparency log verification is skipped in github.com/sigsto","severity":"low","exploited":false,"published_at":"2026-02-23T18:23:15+00:00","url":"https://junglewise.ai/threats/cve-2026-24122-cosign-considered-signatures-valid-with-expired-intermediate"},{"cve":"CVE-2026-22703","cvss":3.1,"epss":0.0011,"slug":"cve-2026-22703-cosign-verification-accepts-any-valid-rekor-entry-under-certain","title":"GO-2026-4309 - Cosign verification accepts any valid Rekor entry under certain conditions in github.com/sigstore/cosign","severity":"low","exploited":false,"published_at":"2026-01-13T16:42:40+00:00","url":"https://junglewise.ai/threats/cve-2026-22703-cosign-verification-accepts-any-valid-rekor-entry-under-certain"},{"cve":"CVE-2024-29903","cvss":3.1,"epss":0.0085,"slug":"cve-2024-29903-cosign-malicious-artifacts-can-cause-machine-wide-dos","title":"GO-2024-2719 - Cosign malicious artifacts can cause machine-wide DoS in github.com/sigstore/cosign","severity":"low","exploited":false,"published_at":"2024-06-05T15:10:52+00:00","url":"https://junglewise.ai/threats/cve-2024-29903-cosign-malicious-artifacts-can-cause-machine-wide-dos"},{"cve":"CVE-2024-29902","cvss":3.1,"epss":0.0066,"slug":"cve-2024-29902-cosign-malicious-attachments-can-cause-system-wide-denial-of","title":"GO-2024-2718 - Cosign malicious attachments can cause system-wide denial of service in github.com/sigstore/cosign","severity":"low","exploited":false,"published_at":"2024-06-05T15:10:52+00:00","url":"https://junglewise.ai/threats/cve-2024-29902-cosign-malicious-attachments-can-cause-system-wide-denial-of"},{"cve":"CVE-2023-46737","cvss":3.1,"epss":0.0064,"slug":"cve-2023-46737-cosign-vulnerable-to-possible-endless-data-attack-from-attacker","title":"GO-2023-2181 - Denial of service attack from remote registry in github.com/sigstore/cosign","severity":"low","exploited":false,"published_at":"2023-11-09T18:40:33+00:00","url":"https://junglewise.ai/threats/cve-2023-46737-cosign-vulnerable-to-possible-endless-data-attack-from-attacker"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"github.com/mattermost/mattermost-server (Go)","slug":"github-com-mattermost-mattermost-server","vulnerabilities":274,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server"},{"name":"github.com/mattermost/mattermost-server/v6 (Go)","slug":"github-com-mattermost-mattermost-server-v6","vulnerabilities":188,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v6"},{"name":"github.com/mattermost/mattermost-server/v5 (Go)","slug":"github-com-mattermost-mattermost-server-v5","vulnerabilities":186,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v5"},{"name":"github.com/mattermost/mattermost/server/v8 (Go)","slug":"github-com-mattermost-mattermost-server-v8","vulnerabilities":182,"url":"https://junglewise.ai/threats/technologies/github-com-mattermost-mattermost-server-v8"},{"name":"stdlib (Go)","slug":"go-stdlib","vulnerabilities":161,"url":"https://junglewise.ai/threats/technologies/go-stdlib"},{"name":"github.com/siyuan-note/siyuan/kernel (Go)","slug":"github-com-siyuan-note-siyuan-kernel","vulnerabilities":158,"url":"https://junglewise.ai/threats/technologies/github-com-siyuan-note-siyuan-kernel"},{"name":"code.gitea.io/gitea (Go)","slug":"code-gitea-io-gitea","vulnerabilities":128,"url":"https://junglewise.ai/threats/technologies/code-gitea-io-gitea"},{"name":"gogs.io/gogs (Go)","slug":"gogs-io-gogs","vulnerabilities":82,"url":"https://junglewise.ai/threats/technologies/gogs-io-gogs"},{"name":"github.com/traefik/traefik (Go)","slug":"github-com-traefik-traefik","vulnerabilities":75,"url":"https://junglewise.ai/threats/technologies/github-com-traefik-traefik"},{"name":"github.com/usememos/memos (Go)","slug":"github-com-usememos-memos","vulnerabilities":75,"url":"https://junglewise.ai/threats/technologies/github-com-usememos-memos"},{"name":"github.com/traefik/traefik/v2 (Go)","slug":"github-com-traefik-traefik-v2","vulnerabilities":73,"url":"https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v2"},{"name":"github.com/traefik/traefik/v3 (Go)","slug":"github-com-traefik-traefik-v3","vulnerabilities":68,"url":"https://junglewise.ai/threats/technologies/github-com-traefik-traefik-v3"}],"technology":{"hub":true,"name":"github.com/sigstore/cosign/v2 (Go)","slug":"github-com-sigstore-cosign-v2","vendor":{"name":"Go","slug":"go","url":"https://junglewise.ai/threats/vendors/go"},"aliases":[],"url":"https://junglewise.ai/threats/technologies/github-com-sigstore-cosign-v2"},"most_severe":[{"cve":"CVE-2026-39395","cvss":4.3,"epss":0.0029,"slug":"cve-2026-39395-sigstore-cosign-validation-bypass-in-verify-blob-attestation","title":"Sigstore Cosign validation bypass in verify-blob-attestation","severity":"medium","exploited":false,"published_at":"2026-04-07T20:16:33.14+00:00","url":"https://junglewise.ai/threats/cve-2026-39395-sigstore-cosign-validation-bypass-in-verify-blob-attestation"},{"cve":"CVE-2024-29903","cvss":3.1,"epss":0.0085,"slug":"cve-2024-29903-cosign-malicious-artifacts-can-cause-machine-wide-dos","title":"GO-2024-2719 - Cosign malicious artifacts can cause machine-wide DoS in github.com/sigstore/cosign","severity":"low","exploited":false,"published_at":"2024-06-05T15:10:52+00:00","url":"https://junglewise.ai/threats/cve-2024-29903-cosign-malicious-artifacts-can-cause-machine-wide-dos"},{"cve":"CVE-2024-29902","cvss":3.1,"epss":0.0066,"slug":"cve-2024-29902-cosign-malicious-attachments-can-cause-system-wide-denial-of","title":"GO-2024-2718 - Cosign malicious attachments can cause system-wide denial of service in github.com/sigstore/cosign","severity":"low","exploited":false,"published_at":"2024-06-05T15:10:52+00:00","url":"https://junglewise.ai/threats/cve-2024-29902-cosign-malicious-attachments-can-cause-system-wide-denial-of"},{"cve":"CVE-2023-46737","cvss":3.1,"epss":0.0064,"slug":"cve-2023-46737-cosign-vulnerable-to-possible-endless-data-attack-from-attacker","title":"GO-2023-2181 - Denial of service attack from remote registry in github.com/sigstore/cosign","severity":"low","exploited":false,"published_at":"2023-11-09T18:40:33+00:00","url":"https://junglewise.ai/threats/cve-2023-46737-cosign-vulnerable-to-possible-endless-data-attack-from-attacker"},{"cve":"CVE-2026-24122","cvss":3.1,"epss":0.0021,"slug":"cve-2026-24122-cosign-considered-signatures-valid-with-expired-intermediate","title":"GO-2026-4529 - Cosign considered signatures valid with expired intermediate certificates when transparency log verification is skipped in github.com/sigsto","severity":"low","exploited":false,"published_at":"2026-02-23T18:23:15+00:00","url":"https://junglewise.ai/threats/cve-2026-24122-cosign-considered-signatures-valid-with-expired-intermediate"},{"cve":"CVE-2026-22703","cvss":3.1,"epss":0.0011,"slug":"cve-2026-22703-cosign-verification-accepts-any-valid-rekor-entry-under-certain","title":"GO-2026-4309 - Cosign verification accepts any valid Rekor entry under certain conditions in github.com/sigstore/cosign","severity":"low","exploited":false,"published_at":"2026-01-13T16:42:40+00:00","url":"https://junglewise.ai/threats/cve-2026-22703-cosign-verification-accepts-any-valid-rekor-entry-under-certain"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}