CVE-2026-40194

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.36% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 29.6% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

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

2026-04-10 20:24Z6 MO AGO

Last updated

2026-05-08 15:18Z5 MO AGO

Reserved

2026-04-09

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Low (CVSS 3.7)

CNA CVSS vector

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

Weaknesses

• CWE-208Observable Timing DiscrepancyBase

Data version

5.2

Document digest

d11b099711203b37b211a997ab29796a19f3e7dad43674e734de5d4cc16e2227

• github.comhttps://github.com/phpseclib/phpseclib/security/advisories/GHSA-r854-jrxh-36qxx_refsource_CONFIRM
• github.comhttps://github.com/phpseclib/phpseclib/commit/ffe48b6b1b1af6963327f0a5330e3aa004a194acx_refsource_MISC
• github.comhttps://github.com/phpseclib/phpseclib/releases/tag/1.0.28x_refsource_MISC
• github.comhttps://github.com/phpseclib/phpseclib/releases/tag/2.0.53x_refsource_MISC
• github.comhttps://github.com/phpseclib/phpseclib/releases/tag/3.0.51x_refsource_MISC