Istio before 1.1.13 and 1.2.x before 1.2.4 mishandles regular expressions for long URIs…
Priority LOW 37CWE-185Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat.
Summary
Istio before 1.1.13 and 1.2.x before 1.2.4 mishandles regular expressions for long URIs, leading to a denial of service during use of the JWT, VirtualService, HTTPAPISpecBinding, or QuotaSpecBinding API.
Why it matters now
EPSS 0.02275 83rd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed istio.io/istio (Go): 1.1.13, 1.2.4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | istio.io/istio (Go) | before 1.1.13 | 1.1.13 | Patch available | GHSA-qcvw-82hh-gq38 |
| — | istio.io/istio (Go) | 1.2.0 to before 1.2.4 | 1.2.4 | Patch available | GHSA-qcvw-82hh-gq38 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- istio.io/istio (Go) Vendor— Affected before 1.1.13 Fixed in 1.1.13 Patch available GHSA-qcvw-82hh-gq38
- istio.io/istio (Go) Vendor— Affected 1.2.0 to before 1.2.4 Fixed in 1.2.4 Patch available GHSA-qcvw-82hh-gq38
Remediation
- Fix · GHSA-qcvw-82hh-gq38 istio.io/istio (Go) Fixed in 1.1.13 Advisory →
- Fix · GHSA-qcvw-82hh-gq38 istio.io/istio (Go) Fixed in 1.2.4 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Service Mesh 1.1 | Fixed | — |
| Red Hat OpenShift Service Mesh 1.1 | Fixed | — |
Timeline
- 2026-10-02 Threatist record created from CVE-2019-14993
- 2026-10-03 Alias added: GHSA-qcvw-82hh-gq38
References
Exploit 2
Advisory 3
More Istio vulnerabilities
- TI-2026-79288 Out-of-bounds write in Google Brotli decoder KEVCVSS 4.0CRITICAL 9.2
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2022-06055 Authorization Policy bypass in Istio CVSS 3.1CRITICAL 9.8
- TI-2021-11909 Istio before 1.8.6 and 1.9.x before 1.9.5 contains a remotely exploitable vulnerability… CVSS 3.1CRITICAL 9.8
- TI-2026-24390 Istio JWKS resolver to prevent private key material from being exposed when JWKS fetch fails. CVSS 4.0HIGH 8.7
- TI-2022-13090 Ill-formed headers may lead to unexpected behavior in Istio CVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-14993 · CVE Program
- CVE-2019-14993 · NVD
- FIRST EPSS
- GHSA-qcvw-82hh-gq38 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-14993 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences