Vulnerability Reportistio/pilot:1.31.3

istio/pilot:1.31.3-debugistio/pilot:1.31.3
digestsha256:6ad1e816c4d4767ba3f30a6286a96d121851ddb23d33e20736758acb5f3f4ea9

Executive Summary

Last scanned:

Threat Score
55/100CAUTION
Reputation
TRUSTED

This image carries significant risk; production deployment is highly discouraged without strict compensating controls. An unauthenticated crafted message could crash istiod, disrupting configuration distribution to the proxies it serves. The main driver is CVE-2022-23635 in the istio.io/istio package, which pilot-discovery reaches through its TLS endpoint on port 15012 during normal operation. CVE-2026-111497 is listed as known-exploited, but it is not reachable through the main process, so it does not drive this verdict. The risk is mainly availability, not data theft or code execution, but a control-plane outage would affect every workload that depends on it.

Hardening plan for this image · 4 steps

Included in Pro

Scanning procedure

  1. Vulnerability scan
    Full CVE sweep across OS packages and app dependencies
  2. Exploitability check
    CVEs ranked by exploit probability (EPSS) and matched against CISA KEV
  3. Reachability analysis
    Symbol-level proof: is the vulnerable code even linked and callable in your binaries?
  4. Runtime verification
    Live-container probes: exposed endpoints, feature flags, real defaults
  5. Supply chain analysis
    Base-image lineage, package provenance and signatures — nothing slipped in unnoticed
  6. Hardening recommendations
    A hardened build plan — patch, remove unused packages, lock down the runtime — with parity tests proving nothing broke

Vulnerabilities

Vulnerability Log

39 total
CVE IDAdjusted SeverityPackageExploit ProbabilityRisk Context
CVE-2022-23635HIGH7.5
istio.io/istio
v0.0.0-20261021234053-edd80bca5f71
fixed in 1.13.1, 1.12.4, 1.11.7
1.7%
Low-Moderate Risk
Directly ExposedContext importance: HIGH
CVE-2022-31045MEDIUM5.88
istio.io/istio
v0.0.0-20261021234053-edd80bca5f71
fixed in 1.12.18, 1.13.5, 1.14.1
1.2%
Low-Moderate Risk
Directly Exposed
CVE-2026-111497MEDIUM5.38
libbrotli1
1.1.0-2build2
fixed in 1.1.0-2ubuntu0.1
82.6%
Actively Exploited
Directly Exposed
CVE-2026-85091MEDIUM5
zlib1g
1:1.3.dfsg-3.1ubuntu2.2
fixed in 1:1.3.dfsg-3.1ubuntu2.3
0.5%
Theoretical Threat
Directly Exposed
CVE-2026-18374MEDIUM4.9
libc-bin
2.39-0ubuntu8.9
No fix yet
0.1%
Theoretical Threat
Directly Exposed
CVE-2026-18374MEDIUM4.9
libc6
2.39-0ubuntu8.9
No fix yet
0.1%
Theoretical Threat
Directly Exposed
CVE-2019-14993MEDIUM4.5
istio.io/istio
v0.0.0-20261021234053-edd80bca5f71
fixed in 1.1.13, 1.2.4
2.3%
Low-Moderate Risk
Directly Exposed
CVE-2021-39155MEDIUM4.5
istio.io/istio
v0.0.0-20261021234053-edd80bca5f71
fixed in 1.9.8, 1.10.4, 1.11.1
1.2%
Low-Moderate Risk
Directly Exposed
CVE-2021-39156MEDIUM4.5
istio.io/istio
v0.0.0-20261021234053-edd80bca5f71
fixed in 1.9.8, 1.10.4, 1.11.1
1.2%
Low-Moderate Risk
Directly Exposed
CVE-2026-89092MEDIUM4.2
libc-bin
2.39-0ubuntu8.9
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-89092MEDIUM4.2
libc6
2.39-0ubuntu8.9
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-88647MEDIUM4.14
libgnutls30t64
3.8.3-1.1ubuntu3.6
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-88648MEDIUM4.14
libgnutls30t64
3.8.3-1.1ubuntu3.6
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-103111MEDIUM4.14
libpcre2-8-0
10.42-4ubuntu2.1
No fix yet
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-86145MEDIUM4.14
libpcre2-8-0
10.42-4ubuntu2.1
No fix yet
0.4%
Theoretical Threat
Directly Exposed
CVE-2026-89157MEDIUM4.14
libpcre2-8-0
10.42-4ubuntu2.1
No fix yet
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-89161MEDIUM4.14
libpcre2-8-0
10.42-4ubuntu2.1
No fix yet
0.1%
Theoretical Threat
Directly Exposed
CVE-2026-107161MEDIUM4.14
libsasl2-2
2.1.28+dfsg1-5ubuntu3.1
No fix yet
0.4%
Theoretical Threat
Directly Exposed
CVE-2026-107161MEDIUM4.14
libsasl2-modules-db
2.1.28+dfsg1-5ubuntu3.1
No fix yet
0.4%
Theoretical Threat
Directly Exposed
CVE-2026-22185MEDIUM4.08
liblmdb0
0.9.31-1build1
No fix yet
0.2%
Theoretical Threat
Directly Exposed
GO-2026-5932MEDIUM4
golang.org/x/crypto
v0.58.0
No fix yet
—
Directly Exposed
CVE-2026-89158LOW3.9
libpcre2-8-0
10.42-4ubuntu2.1
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-89160LOW3.9
libpcre2-8-0
10.42-4ubuntu2.1
No fix yet
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-67693LOW3.54
libgnutls30t64
3.8.3-1.1ubuntu3.6
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-89156LOW3.54
libpcre2-8-0
10.42-4ubuntu2.1
No fix yet
0.3%
Theoretical Threat
Directly Exposed
CVE-2025-29481LOW3.31
libbpf1
1:1.3.0-2build2
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2025-1352LOW3.31
libelf1t64
0.190-1.1ubuntu0.1
No fix yet
0.7%
Theoretical Threat
Directly Exposed
CVE-2025-1376LOW3.31
libelf1t64
0.190-1.1ubuntu0.1
No fix yet
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-102473LOW3.3
dash
0.5.12-6ubuntu5
No fix yet
0.1%
Theoretical Threat
Post-Exploit
CVE-2026-40228LOW3.3
libsystemd0
255.4-1ubuntu8.18
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-40228LOW3.3
libudev1
255.4-1ubuntu8.18
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-95184LOW3.18
libgnutls30t64
3.8.3-1.1ubuntu3.6
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-95209LOW3
libgnutls30t64
3.8.3-1.1ubuntu3.6
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-95210LOW3
libgnutls30t64
3.8.3-1.1ubuntu3.6
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-18477LOW2.64
tar
1.35+dfsg-3ubuntu0.4
No fix yet
<0.1%
Theoretical Threat
Post-Exploit
CVE-2026-18508LOW2.64
tar
1.35+dfsg-3ubuntu0.4
No fix yet
0.1%
Theoretical Threat
Post-Exploit
CVE-2026-102474LOW2.4
dash
0.5.12-6ubuntu5
No fix yet
0.1%
Theoretical Threat
Post-Exploit
CVE-2024-56433LOW1.84
login
1:4.13+dfsg1-4ubuntu3.2
No fix yet
0.4%
Theoretical Threat
Post-Exploit
CVE-2024-56433LOW1.84
passwd
1:4.13+dfsg1-4ubuntu3.2
No fix yet
0.4%
Theoretical Threat
Post-Exploit

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