CVE-2026-13676

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

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

EPSS percentile

Ranks above 31.5% 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:H/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-09-04.

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

2026-06-29 13:22Z2 MO AGO

Last updated

2026-09-04 12:04Z13 HR AGO

Reserved

2026-06-29

Assigning CNA

openjs

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:H/A:N

Weaknesses

• CWE-436Interpretation ConflictClass
• CWE-551Incorrect Behavior Order: Authorization Before Parsing and CanonicalizationBase

Data version

5.2

Document digest

690b6704d97aa3d6244f625b1bef1679fdb32c7317866611656fe84371ac9a47

• github.comhttps://github.com/fastify/fast-uri/security/advisories/GHSA-4c8g-83qw-93j6
• cna.openjsf.orghttps://cna.openjsf.org/security-advisories.html
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• bugzilla.redhat.comRHBZ#2494197https://bugzilla.redhat.com/show_bug.cgi?id=2494197issue-trackingx_refsource_REDHAT
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