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CVE-2026-18107

A flaw was found in CRIU's handling of restartable sequences (rseq) during checkpoint/restore. A malicious process inside a container can register an rseq critical section that hijacks CRIU's parasite code injection during checkpoint, allowing it to spoof the process credentials saved in the checkpoint image. On restore, the container process gains elevated capabilities and zeroed UIDs/GIDs. The practical impact on Red Hat products is limited by several factors: checkpoint/restore requires root
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2040c145df59ef55f0a858e169f3bf0c0daa00f31cc8cf4b1bcfc406c2ae4a1a
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 7 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"affected","packageName":"criu","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"affected","packageName":"criu","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"criu","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/5

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"criu","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/4

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"affected","packageName":"container-tools:rhel8/criu","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"affected","packageName":"criu","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"rhcos","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/6

Affected products and versions

7 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"affected","packageName":"criu","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"affected","packageName":"criu","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"criu","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"criu","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"affected","packageName":"container-tools:rhel8/criu","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"affected","packageName":"criu","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"affected","packageName":"rhcos","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/affected/6

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-269","description":"Improper Privilege Management","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-18107"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/references/0
{"name":"RHBZ#2508140","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2508140"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/references/1
{"url":"https://github.com/checkpoint-restore/criu/pull/3097"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e10303f2c6ae53ece66de7477247b0a82648b5ee3398d73a362bcebc24a577f5 · sha256:eecd1936b6c80ae5… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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