CVE-2026-116577

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.38% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 32.2% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-10-26.

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

2026-10-26 20:20Z2 DAYS AGO

Last updated

2026-10-26 20:20Z2 DAYS AGO

Reserved

2026-10-26

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-407Inefficient Algorithmic ComplexityClass
• CWE-770Allocation of Resources Without Limits or ThrottlingBase
• CWE-1322Use of Blocking Code in Single-threaded, Non-blocking ContextBase

Data version

5.2

Document digest

bf9782a058bb9b02baeda6c3ddac79068a75b1551b8667cf97ac9fd3335c50f3

• github.comhttps://github.com/tornadoweb/tornado/security/advisories/GHSA-pcg2-g6cj-q92cx_refsource_CONFIRM
• github.comhttps://github.com/tornadoweb/tornado/pull/3765x_refsource_MISC
• github.comhttps://github.com/tornadoweb/tornado/commit/1b7a1dc9f340f52de929852e8125aa12f25297c9x_refsource_MISC
• github.comhttps://github.com/tornadoweb/tornado/releases/tag/v6.6.0x_refsource_MISC