CVE-2022-31045

highpriority · track · 39EPSS 0.012 · 68 %ileDEEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
1.18% (68th) EPSS
CVSS 7.5 · high
Is it mine?
37 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · cert_bund · osv

EPSS · scored 2026-10-27

Istio is an open platform to connect, manage, and secure microservices. In affected versions ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing. Users are most likely at risk if they have an Istio ingress Gateway exposed to external traffic. This vulnerability has been resolved in versions 1.12.8, 1.13.5, and 1.14.1. Users are advised to upgrade. There are no known workarounds for this issue.

01

cvss

Technical severity, 0–10. One row per scoring source.

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 5.9–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.17highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Hsecondary · ENISA EU
v3.17highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Hsecondary · security-advisories@github.comexploitability 2.2 · impact 4.7
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV
v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

04

affected products (37)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2022-0288Red Hat OpenShift: Mehrere SchwachstellenDeutsch2022-06-13csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um einen Denial of Service Angriff durchzuführen, einen nicht näher spezifizierten Angriff durchzuführen, vertrauliche Informationen offenzulegen und Daten zu manipulieren.

  • GHSA-xwx5-5c9g-x68xIll-formed headers may lead to unexpected behavior in Istio2022-06-10ghsa · osvUS

    ### Impact Ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing. You are at most risk if you have an Istio ingress Gateway exposed to external traffic. ### Patches 1.12.8, 1.13.5, 1.14.1 ### Workarounds No. ### References More details can be found in the [Istio Security Bulletin](https://istio.io/latest/news/security/istio-security-2022-05) ### For more information If you have any questions or comments about this advisory, please email us at [istio-security-vulnerability-reports@googlegroups.com](mailto:istio-security-vulnerability-reports@googlegroups.com)

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

published 2022-06-09modified 2026-06-17
08

references (13)

External citations — patches, advisories, analysis.

scry

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