01 Record

CVE-2024-21626

runc container breakout through process.cwd trickery and leaked fds

HighPUBLISHEDCNA: GitHub_M

CNA base score8.6 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

View raw JSON

02 Description

runc container breakout through process.cwd trickery and leaked fds

03 Exploitation and scoring

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

18.09% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 96.9% of scored records. A rank, not a probability.

NVD base score

8.6 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-24.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-01-31 21:31Z2 YR AGO

Last updated

2026-08-24 12:06Z11 DAYS AGO

Reserved

2023-12-29

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Weaknesses

CWE-403Exposure of File Descriptor to Unintended Control Sphere ('File Descriptor Leak')Base
CWE-668Exposure of Resource to Wrong SphereClass

Data version

5.2

Document digest

96462920ec465c597faac643a10711076ee24704cc6420945dd8b7315d1e96c4

05 Affected products

VendorProductVersionsPlatforms

opencontainersrunc>=v1.0.0-rc93, < 1.1.12—

06 References

github.comhttps://github.com/opencontainers/runc/security/advisories/GHSA-xr7r-f8xq-vfvvx_refsource_CONFIRM
github.comhttps://github.com/opencontainers/runc/commit/02120488a4c0fc487d1ed2867e901eeed7ce8ecfx_refsource_MISC
github.comhttps://github.com/opencontainers/runc/releases/tag/v1.1.12x_refsource_MISC
www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/02/01/1
www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/02/02/3
packetstormsecurity.comhttp://packetstormsecurity.com/files/176993/runc-1.1.11-File-Descriptor-Leak-Privilege-Escalation.html
lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SYMO3BANINS6RGFQFKPRG4FIOJ7GWYTL/
lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2NLXNE23Q5ESQUAI22Z7A63JX2WMPJ2J/
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/02/msg00005.html
www.vicarius.iohttps://www.vicarius.io/vsociety/posts/leaky-vessels-part-1-cve-2024-21626
access.redhat.comhttps://access.redhat.com/security/cve/CVE-2024-21626vdb-entryx_refsource_REDHAT
bugzilla.redhat.comRHBZ#2258725https://bugzilla.redhat.com/show_bug.cgi?id=2258725issue-trackingx_refsource_REDHAT
security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-21626.jsonx_sadp-csaf-vex
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:1270vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0717vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:4597vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0684vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2025:2441vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0666vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2025:2701vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0662vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2025:2710vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0645vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2025:1711vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:10525vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:10841vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:10149vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2025:0650vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:10520vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2025:0115vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0758vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0760vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0757vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0764vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0759vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0748vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0752vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0756vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0755vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/errata/RHSA-2024:0670vendor-advisoryx_refsource_REDHAT

01 Record index

CVE-2024-21626

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2024-21626

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References