CVE-2026-48818

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.
• 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

0.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 29.8% 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:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

Red Hat severity

Important. 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

2026-06-17 17:50Z2 MO AGO

Last updated

2026-08-04 17:45Z1 MO AGO

Reserved

2026-05-22

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:H/I:N/A:N

Weaknesses

• CWE-918Server-Side Request Forgery (SSRF)Base

Data version

5.2

Document digest

86d2d3ff90eb1b76dc4b7200d42336b77ab297bab7847d640382f88642ca7a22

• github.comhttps://github.com/Kludex/starlette/security/advisories/GHSA-wqp7-x3pw-xc5rx_refsource_CONFIRM
• github.comhttps://github.com/Kludex/starlette/pull/3287x_refsource_MISC
• github.comhttps://github.com/Kludex/starlette/commit/fd53168a7767b6b55ba5af787fd88f49e33cabc5x_refsource_MISC
• github.comhttps://github.com/Kludex/starlette/releases/tag/1.1.0x_refsource_MISC
• github.comhttps://github.com/pypa/advisory-database/tree/main/vulns/starlette/PYSEC-2026-2281.yamlx_refsource_MISC
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-48818vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2490020https://bugzilla.redhat.com/show_bug.cgi?id=2490020issue-trackingx_refsource_REDHAT
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48818.jsonx_sadp-csaf-vex
• access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:30089vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:30088vendor-advisoryx_refsource_REDHAT
• access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:30087vendor-advisoryx_refsource_REDHAT