openssl: openssl: Denial of Service via race condition in certificate extension caching

zetlyn/cve-redhat vulnerability cve CVE-2026-84783 known 2026-09-29

https://access.redhat.com/security/cve/CVE-2026-84783

Properties

cvss5.9
receipt
Source
Red Hat
Its words
5.9
Read by
field:cvss3_score
Said since
2026-10-02 12:01 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-84783",
  "CWE": "CWE-825",
  "advisories": [
    "RHSA-2026:59641",
    "RHSA-2026:70734"
  ],
  "affected_packages": [
    "openssl3-main-3.5.8-1.hum1",
    "openssl-main-3.5.8-0.1.hum1"
  ],
  "bugzilla": "2543243",
  "bugzilla_description": "openssl: openssl: Denial of Service via race condition in certificate extension caching",
  "cvss3_score": "5.9",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-29T15:32:24Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-84783.json",
  "severity": "moderate"
}
cweCWE-825
receipt
Source
Red Hat
Its words
CWE-825
Read by
field:CWE
Said since
2026-10-02 12:01 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-84783",
  "CWE": "CWE-825",
  "advisories": [
    "RHSA-2026:59641",
    "RHSA-2026:70734"
  ],
  "affected_packages": [
    "openssl3-main-3.5.8-1.hum1",
    "openssl-main-3.5.8-0.1.hum1"
  ],
  "bugzilla": "2543243",
  "bugzilla_description": "openssl: openssl: Denial of Service via race condition in certificate extension caching",
  "cvss3_score": "5.9",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-29T15:32:24Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-84783.json",
  "severity": "moderate"
}
packagesopenssl3-main-3.5.8-1.hum1, openssl-main-3.5.8-0.1.hum1
receipt
Source
Red Hat
Its words
openssl3-main-3.5.8-1.hum1, openssl-main-3.5.8-0.1.hum1
Read by
field:affected_packages[]
Said since
2026-10-02 12:01 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-84783",
  "CWE": "CWE-825",
  "advisories": [
    "RHSA-2026:59641",
    "RHSA-2026:70734"
  ],
  "affected_packages": [
    "openssl3-main-3.5.8-1.hum1",
    "openssl-main-3.5.8-0.1.hum1"
  ],
  "bugzilla": "2543243",
  "bugzilla_description": "openssl: openssl: Denial of Service via race condition in certificate extension caching",
  "cvss3_score": "5.9",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-29T15:32:24Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-84783.json",
  "severity": "moderate"
}
severitymoderate
A flaw that is harder to exploit, or whose impact is limited.
receipt
Source
Red Hat
Its words
moderate
Read by
field:severity
Said since
2026-10-02 12:01 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-84783",
  "CWE": "CWE-825",
  "advisories": [
    "RHSA-2026:59641",
    "RHSA-2026:70734"
  ],
  "affected_packages": [
    "openssl3-main-3.5.8-1.hum1",
    "openssl-main-3.5.8-0.1.hum1"
  ],
  "bugzilla": "2543243",
  "bugzilla_description": "openssl: openssl: Denial of Service via race condition in certificate extension caching",
  "cvss3_score": "5.9",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-09-29T15:32:24Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-84783.json",
  "severity": "moderate"
}

Text

openssl: openssl: Denial of Service via race condition in certificate extension caching