CVE-2026-45063

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

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

EPSS percentile

Equal to or higher than the score of 30.2% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-15.

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

2026-07-14 18:28Z3 MO AGO

Last updated

2026-07-14 19:46Z3 MO AGO

Reserved

2026-05-08

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-290Authentication Bypass by SpoofingBase

Data version

5.2

Document digest

e2a6d0b34036b123eb23bd5e9ca927184e9e61f2e15698556043613f07ff5e66

• github.comhttps://github.com/symfony/symfony/security/advisories/GHSA-ph86-p8f6-f9r2x_refsource_CONFIRM
• github.comhttps://github.com/symfony/symfony/commit/59ef484029601a7af06f5e06c6ed921fdcea5a0dx_refsource_MISC
• github.comhttps://github.com/symfony/symfony/releases/tag/v5.4.52x_refsource_MISC
• github.comhttps://github.com/symfony/symfony/releases/tag/v6.4.40x_refsource_MISC
• github.comhttps://github.com/symfony/symfony/releases/tag/v7.4.12x_refsource_MISC
• github.comhttps://github.com/symfony/symfony/releases/tag/v8.0.12x_refsource_MISC