authlib: Authlib: Signature verification bypass via malicious JWT allows unauthorized access

zetlyn/cve-redhat vulnerability cve CVE-2026-28802 known 2026-03-06

https://access.redhat.com/security/cve/CVE-2026-28802

Properties

cvss9.1
receipt
Source
Red Hat
Its words
9.1
Read by
field:cvss3_score
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-28802",
  "CWE": "CWE-347",
  "advisories": [
    "RHSA-2026:6309",
    "RHSA-2026:6404",
    "RHSA-2026:4942",
    "RHSA-2026:5168",
    "RHSA-2026:19375",
    "RHSA-2026:5665",
    "RHSA-2026:6568"
  ],
  "affected_packages": [
    "ansible-automation-platform-26/lightspeed-chatbot-rhel9:1774417022",
    "quay/quay-rhel8:1773771962",
    "quay/quay-rhel9:1779204086",
    "quay/quay-rhel8:1773971077",
    "quay/quay-rhel8:1773936323",
    "quay/quay-rhel8:1775169219"
  ],
  "bugzilla": "2445120",
  "bugzilla_description": "authlib: Authlib: Signature verification bypass via malicious JWT allows unauthorized access",
  "cvss3_score": "9.1",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-03-06T06:44:26Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-28802.json",
  "severity": "important"
}
cweCWE-347
receipt
Source
Red Hat
Its words
CWE-347
Read by
field:CWE
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-28802",
  "CWE": "CWE-347",
  "advisories": [
    "RHSA-2026:6309",
    "RHSA-2026:6404",
    "RHSA-2026:4942",
    "RHSA-2026:5168",
    "RHSA-2026:19375",
    "RHSA-2026:5665",
    "RHSA-2026:6568"
  ],
  "affected_packages": [
    "ansible-automation-platform-26/lightspeed-chatbot-rhel9:1774417022",
    "quay/quay-rhel8:1773771962",
    "quay/quay-rhel9:1779204086",
    "quay/quay-rhel8:1773971077",
    "quay/quay-rhel8:1773936323",
    "quay/quay-rhel8:1775169219"
  ],
  "bugzilla": "2445120",
  "bugzilla_description": "authlib: Authlib: Signature verification bypass via malicious JWT allows unauthorized access",
  "cvss3_score": "9.1",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-03-06T06:44:26Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-28802.json",
  "severity": "important"
}
packagesansible-automation-platform-26/lightspeed-chatbot-rhel9:1774417022, quay/quay-rhel8:1773771962, quay/quay-rhel9:1779204086, quay/quay-rhel8:1773971077, quay/quay-rhel8:1773936323, quay/quay-rhel8:1775169219
receipt
Source
Red Hat
Its words
ansible-automation-platform-26/lightspeed-chatbot-rhel9:1774417022, quay/quay-rhel8:1773771962, quay/quay-rhel9:1779204086, quay/quay-rhel8:1773971077, quay/quay-rhel8:1773936323, quay/quay-rhel8:1775169219
Read by
field:affected_packages[]
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-28802",
  "CWE": "CWE-347",
  "advisories": [
    "RHSA-2026:6309",
    "RHSA-2026:6404",
    "RHSA-2026:4942",
    "RHSA-2026:5168",
    "RHSA-2026:19375",
    "RHSA-2026:5665",
    "RHSA-2026:6568"
  ],
  "affected_packages": [
    "ansible-automation-platform-26/lightspeed-chatbot-rhel9:1774417022",
    "quay/quay-rhel8:1773771962",
    "quay/quay-rhel9:1779204086",
    "quay/quay-rhel8:1773971077",
    "quay/quay-rhel8:1773936323",
    "quay/quay-rhel8:1775169219"
  ],
  "bugzilla": "2445120",
  "bugzilla_description": "authlib: Authlib: Signature verification bypass via malicious JWT allows unauthorized access",
  "cvss3_score": "9.1",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-03-06T06:44:26Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-28802.json",
  "severity": "important"
}
severityimportant
A flaw that can easily compromise confidentiality, integrity or availability.
receipt
Source
Red Hat
Its words
important
Read by
field:severity
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-04 18:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-28802",
  "CWE": "CWE-347",
  "advisories": [
    "RHSA-2026:6309",
    "RHSA-2026:6404",
    "RHSA-2026:4942",
    "RHSA-2026:5168",
    "RHSA-2026:19375",
    "RHSA-2026:5665",
    "RHSA-2026:6568"
  ],
  "affected_packages": [
    "ansible-automation-platform-26/lightspeed-chatbot-rhel9:1774417022",
    "quay/quay-rhel8:1773771962",
    "quay/quay-rhel9:1779204086",
    "quay/quay-rhel8:1773971077",
    "quay/quay-rhel8:1773936323",
    "quay/quay-rhel8:1775169219"
  ],
  "bugzilla": "2445120",
  "bugzilla_description": "authlib: Authlib: Signature verification bypass via malicious JWT allows unauthorized access",
  "cvss3_score": "9.1",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-03-06T06:44:26Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-28802.json",
  "severity": "important"
}

Text

authlib: Authlib: Signature verification bypass via malicious JWT allows unauthorized access