9.9

CVE-2026-50195: containerd: CRI checkpoint import allows local image tag poisoning

Analyzed
AliasesUBUNTU-CVE-2026-50195DEBIAN-CVE-2026-50195CGA-22vp-xr3h-g994
Published 01-07-2026Last modified 01-07-2026

Vulnerability summary

CVE-2026-50195 is a critical (CVSS 9.9) vulnerability in containerd. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 23.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.6, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
9.9/10
010
Critical · v3.1 (NVD)
EPSS score
0.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 6

Timeline

  1. 01-07-2026
    PublishedVulnerability first disclosed.
  2. 01-07-2026
    Last modifiedVulnerability information updated.

Description

containerd is an open-source container runtime. Versions prior to 2.3.2, 2.2.5 and 2.1.9 contain a vulnerability in the CRI checkpoint import process where it fails to validate the image references specified within a checkpoint image's configuration. An attacker with permissions to create pods can use a crafted checkpoint image to force containerd to pull a malicious image and assign it an arbitrary local tag, thereby poisoning the node's local image cache. Subsequently, if other pods on the same node attempt to use the poisoned tag with an IfNotPresent (or Never) pull policy, they will unknowingly execute the attacker's malicious image instead of the legitimate one. This can lead to a compromise of the affected pods, allowing the attacker to execute arbitrary code under the victim pod's identity. This issue has been fixed in versions 2.3.2, 2.2.5 and 2.1.9.

CVSS metrics

11 scores · 8 sources · 2 versions

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.30% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard199 products
  • amazon-ecs-agent< 1.105.0-r0
  • amazon-ecs-agent-fips< 1.105.0-r0
  • auditbeat-7< 7.17.29-r18
  • auditbeat-fips-7< 7.17.29-r20
  • buildctl< 0.31.0-r2
Alpine1 product
  • containerd≥ 2.1.0, < 2.3.2-r0

2 vendors · 200 products · Showing 200 of 416

References

10 links