CVE-2026-56740

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited 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

0.59% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 45.7% of scored records. A rank, not a probability.

NVD base score

7.5 (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:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-08-18.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-07-17 21:17Z1 MO AGO

Last updated

2026-07-20 13:58Z1 MO AGO

Reserved

2026-06-22

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.2

Document digest

761c40de49652e9482752e7c340ae125cba2fcf9c99fdc4bf1f9302f274f95c0

• github.comhttps://github.com/jline/jline3/security/advisories/GHSA-47qp-hqvx-6r3fx_refsource_CONFIRM
• github.comhttps://github.com/jline/jline3/pull/2000x_refsource_MISC
• github.comhttps://github.com/jline/jline3/pull/2001x_refsource_MISC
• github.comhttps://github.com/jline/jline3/commit/0389f0ee6d0375901b602671ad5dafd4d1d4ee09x_refsource_MISC
• github.comhttps://github.com/jline/jline3/commit/4ee3a73849ffb9a85ec748e4e8cd8f6d81f84f40x_refsource_MISC
• github.comhttps://github.com/jline/jline3/commit/934f09e6128cee33c2b13d42b6e859c1ee2d194bx_refsource_MISC
• github.comhttps://github.com/jline/jline3/releases/tag/4.0.16x_refsource_MISC
• github.comhttps://github.com/jline/jline3/releases/tag/4.2.1x_refsource_MISC
• github.comhttps://github.com/jline/jline3/releases/tag/jline-3.30.14x_refsource_MISC