CVE-2026-59818

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 35.6% of scored records. A rank, not a probability.

NVD base score

8.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-13.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-07-08 21:00Z1 MO AGO

Last updated

2026-07-09 13:13Z1 MO AGO

Reserved

2026-07-07

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

• CWE-295Improper Certificate ValidationBase

Data version

5.2

Document digest

31eebe1abe6ace67daa68fff85d108f5724b4587d5a6381b01434f644608fce6

• github.comhttps://github.com/etcd-io/etcd/security/advisories/GHSA-3wh4-j44w-pg92x_refsource_CONFIRM
• github.comhttps://github.com/etcd-io/etcd/pull/22007x_refsource_MISC
• github.comhttps://github.com/etcd-io/etcd/pull/22021x_refsource_MISC
• github.comhttps://github.com/etcd-io/etcd/pull/22025x_refsource_MISC
• github.comhttps://github.com/etcd-io/etcd/commit/2308ce1578064641d4d67c40f0487309267d1befx_refsource_MISC
• github.comhttps://github.com/etcd-io/etcd/commit/24838af5a53dd0245adced920e42a9bf0e7a267fx_refsource_MISC
• github.comhttps://github.com/etcd-io/etcd/commit/8221ae82bc25d4d55ca64382207b69be71038cbbx_refsource_MISC
• github.comhttps://github.com/etcd-io/etcd/releases/tag/v3.5.32x_refsource_MISC
• github.comhttps://github.com/etcd-io/etcd/releases/tag/v3.6.13x_refsource_MISC