CVE-20XX-?
agent?

CVE-2021-39156

8.1 HIGH 1% exploit odds Fix listed

What it is

Istio is an open source platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. Istio 1.11.0, 1.10.3 and below, and 1.9.7 and below contain a remotely exploitable vulnerability where an HTTP request with `#fragment` in the path may bypass Istio’s URI path based authorization policies. Patches are available in Istio 1.11.1, Istio 1.10.4 and Istio 1.9.8. As a work around a Lua filter may be written to normalize the path.

At a glance

Exploitability
Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure, data tampering.
Exploit odds
1.2% chance of exploitation in the next 30 days (EPSS).
Fix
A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

  1. PublishedDisclosed publicly on CVE.org and NVD
  2. Last updatedMost recent change to the record

Why it ranks here

Details

Published
Last modified
Exploit probability
1.2% · EPSS, next 30 days
Weakness
CWE-863 · Incorrect authorization
Record status
Modified

Affected

Attack profile CVSS 3.1 · 8.1

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-39156.md and follow it. Check whether this project is affected by CVE-2021-39156. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record