Vulnerability Reportmattermost/mattermost-team-edition:10.11.25

mattermost/mattermost-team-edition:10.11mattermost/mattermost-team-edition:release-10mattermost/mattermost-team-edition:release-10.11mattermost/mattermost-team-edition:10.11.25
digestsha256:5e303c9ff2350d39572612f13731ea362fb2a3c5d5f34f98ab4f967edf0c8fda

Executive Summary

Last scanned:

Threat Score
57/100CAUTION
Reputation
RELIABLE

This image carries significant risk; production deployment is highly discouraged without strict compensating controls. An attacker who submits a crafted WebP file could exhaust server memory and crash or slow the Mattermost process, disrupting team messaging. The authorization bypass in CVE-2026-33186 only applies if a gRPC authorization policy is configured, which the scan does not show for this image. Most other findings are denial-of-service flaws that need non-default features or HTTP/2 exposed directly to clients, so they carry lower practical risk, but remediating the identified vulnerabilities before production use is the sensible path.

Hardening plan for this image · 6 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

60 total
CVE IDAdjusted SeverityPackageExploit ProbabilityRisk Context
CVE-2026-46603HIGH7.5
golang.org/x/image
v0.44.0
fixed in 0.45.0
0.4%
Theoretical Threat
Directly ExposedContext importance: HIGH
CVE-2026-33186HIGH7.28
google.golang.org/grpc
v1.72.0
fixed in 1.79.3
1.6%
Low-Moderate Risk
Directly ExposedContext importance: MEDIUM
CVE-2026-33487MEDIUM6
github.com/russellhaering/goxmldsig
v1.5.0
fixed in 1.6.0
0.3%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-78669MEDIUM6
golang.org/x/net
v0.56.0
fixed in 0.60.0
0.6%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-78659MEDIUM6
golang.org/x/net
v0.56.0
fixed in 0.60.0
0.6%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-84304MEDIUM6
google.golang.org/grpc
v1.72.0
fixed in 1.83.1
0.6%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-5435MEDIUM5.9
libc6
2.36-9+deb12u14
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-6791MEDIUM5.9
libc6
2.36-9+deb12u14
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-77117MEDIUM5.9
libc6
2.36-9+deb12u14
No fix yet
0.4%
Theoretical Threat
Directly Exposed
CVE-2026-80489MEDIUM5.9
libc6
2.36-9+deb12u14
No fix yet
0.4%
Theoretical Threat
Directly Exposed
CVE-2026-54872MEDIUM5.9
libssl3
3.0.20-1~deb12u2
fixed in 3.0.22-1~deb12u2
0.4%
Theoretical Threat
Directly Exposed
CVE-2026-75805MEDIUM5.9
libssl3
3.0.20-1~deb12u2
fixed in 3.0.22-1~deb12u2
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-77696MEDIUM5.9
libssl3
3.0.20-1~deb12u2
fixed in 3.0.22-1~deb12u2
0.4%
Theoretical Threat
Directly Exposed
CVE-2026-6368MEDIUM5.5
libc6
2.36-9+deb12u14
No fix yet
0.1%
Theoretical Threat
Directly Exposed
CVE-2026-8674MEDIUM5.3
libc6
2.36-9+deb12u14
No fix yet
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-75806MEDIUM5.3
libssl3
3.0.20-1~deb12u2
fixed in 3.0.22-1~deb12u2
1.1%
Low-Moderate Risk
Directly Exposed
CVE-2026-42767MEDIUM5.3
libssl3
3.0.20-1~deb12u2
fixed in 3.0.22-1~deb12u1
0.6%
Theoretical Threat
Directly Exposed
CVE-2026-56865MEDIUM5.28
golang.org/x/mod
v0.37.0
fixed in 0.40.0
0.1%
Theoretical Threat
Directly Exposed
GHSA-hrxh-6v49-42gfMEDIUM5.28
google.golang.org/grpc
v1.72.0
fixed in 1.82.1
—
Directly Exposed
CVE-2026-84303MEDIUM5.04
google.golang.org/grpc
v1.72.0
fixed in 1.83.1
0.3%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-5450MEDIUM5
libc6
2.36-9+deb12u14
No fix yet
0.5%
Theoretical Threat
Directly Exposed
CVE-2026-5928MEDIUM5
libc6
2.36-9+deb12u14
No fix yet
0.4%
Theoretical Threat
Directly Exposed
CVE-2026-18374MEDIUM4.9
libc6
2.36-9+deb12u14
No fix yet
0.1%
Theoretical Threat
Directly Exposed
CVE-2026-56864MEDIUM4.86
golang.org/x/mod
v0.37.0
fixed in 0.40.0
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-97032MEDIUM4.72
golang.org/x/net
v0.56.0
fixed in 0.60.0
0.5%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-63072MEDIUM4.5
libssl3
3.0.20-1~deb12u2
fixed in 3.0.22-1~deb12u1
0.9%
Theoretical Threat
Directly Exposed
CVE-2026-63076MEDIUM4.5
libssl3
3.0.20-1~deb12u2
fixed in 3.0.22-1~deb12u1
1.6%
Low-Moderate Risk
Directly Exposed
CVE-2026-54874MEDIUM4.5
libssl3
3.0.20-1~deb12u2
fixed in 3.0.22-1~deb12u1
0.6%
Theoretical Threat
Directly Exposed
CVE-2026-63074MEDIUM4.5
libssl3
3.0.20-1~deb12u2
fixed in 3.0.22-1~deb12u1
0.6%
Theoretical Threat
Directly Exposed
CVE-2026-63209MEDIUM4.5
github.com/klauspost/compress
v1.18.0
fixed in 1.18.7
0.6%
Theoretical Threat
Directly Exposed
CVE-2026-78660MEDIUM4.5
golang.org/x/net
v0.56.0
fixed in 0.60.0
0.4%
Theoretical Threat
Directly Exposed
CVE-2026-56851MEDIUM4.5
golang.org/x/text
v0.40.0
fixed in 0.41.0
0.5%
Theoretical Threat
Directly Exposed
CVE-2026-84445MEDIUM4.5
google.golang.org/grpc
v1.72.0
fixed in 1.82.2, 1.83.2, 1.84.0-dev.0.20260825144003-d5a41119e0e3, 1.85.0-dev.0.20260825072537-93e31b48545e
0.6%
Theoretical Threat
Directly Exposed
CVE-2026-84782MEDIUM4.44
libssl3
3.0.20-1~deb12u2
fixed in 3.0.22-1~deb12u2
0.8%
Theoretical Threat
Directly Exposed
CVE-2026-78663MEDIUM4.24
golang.org/x/net
v0.56.0
fixed in 0.60.0
0.6%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-86805MEDIUM4.2
libc6
2.36-9+deb12u14
No fix yet
<0.1%
Theoretical Threat
Directly Exposed
CVE-2026-95818MEDIUM4.2
libc6
2.36-9+deb12u14
No fix yet
0.1%
Theoretical Threat
Directly Exposed
CVE-2026-19542MEDIUM4.2
libc6
2.36-9+deb12u14
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-89092MEDIUM4.2
libc6
2.36-9+deb12u14
No fix yet
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-19499MEDIUM4.08
libc6
2.36-9+deb12u14
No fix yet
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-56854MEDIUM4.08
golang.org/x/crypto
v0.53.0
fixed in 0.55.0
0.4%
Theoretical Threat
Directly Exposed
DLA-4845-1MEDIUM4
ca-certificates
20250419~deb12u1
fixed in 20250419~deb12u2
—
Directly Exposed
CVE-2026-6238LOW3.9
libc6
2.36-9+deb12u14
No fix yet
0.4%
Theoretical Threat
Directly Exposed
CVE-2010-4756LOW3.9
libc6
2.36-9+deb12u14
No fix yet
2.6%
Low-Moderate Risk
Directly Exposed
CVE-2018-20796LOW3.9
libc6
2.36-9+deb12u14
No fix yet
5.8%
Low-Moderate Risk
Directly Exposed
CVE-2019-1010022LOW3.9
libc6
2.36-9+deb12u14
No fix yet
3.2%
Low-Moderate Risk
Directly Exposed
CVE-2019-1010023LOW3.9
libc6
2.36-9+deb12u14
No fix yet
3.1%
Low-Moderate Risk
Directly Exposed
CVE-2019-1010024LOW3.9
libc6
2.36-9+deb12u14
No fix yet
3.2%
Low-Moderate Risk
Directly Exposed
CVE-2019-1010025LOW3.9
libc6
2.36-9+deb12u14
No fix yet
2.5%
Low-Moderate Risk
Directly Exposed
CVE-2019-9192LOW3.9
libc6
2.36-9+deb12u14
No fix yet
2.4%
Low-Moderate Risk
Directly Exposed
CVE-2026-97399LOW3.7
libc6
2.36-9+deb12u14
No fix yet
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-35189LOW3.7
libssl3
3.0.20-1~deb12u2
fixed in 3.0.22-1~deb12u2
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-75803LOW3.7
libssl3
3.0.20-1~deb12u2
fixed in 3.0.22-1~deb12u1
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-26958LOW3.7
filippo.io/edwards25519
v1.1.0
fixed in 1.1.1
0.4%
Theoretical Threat
Directly Exposed
CVE-2026-56855LOW3.18
golang.org/x/crypto
v0.53.0
fixed in 0.56.0
0.5%
Theoretical Threat
Directly Exposed
CVE-2026-78662LOW3.18
golang.org/x/crypto
v0.53.0
fixed in 0.56.0
0.4%
Theoretical Threat
Directly Exposed
GO-2026-5932LOW2.4
golang.org/x/crypto
v0.53.0
No fix yet
—
Directly Exposed
CVE-2025-27587LOW2.12
libssl3
3.0.20-1~deb12u2
No fix yet
0.4%
Theoretical Threat
Directly Exposed
DLA-4792-1NONE0
tzdata
2026b-0+deb12u1
fixed in 2026c-0+deb12u1
—
Not Applicable
DLA-4854-1NONE0
tzdata
2026b-0+deb12u1
fixed in 2026e-0+deb12u1
—
Not Applicable

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