CVE-2026-34043
Vulnerability Summary
Timeline
Description
Serialize JavaScript to a superset of JSON that includes regular expressions and functions. Prior to version 7.0.5, there is a Denial of Service (DoS) vulnerability caused by CPU exhaustion. When serializing a specially crafted "array-like" object (an object that inherits from Array.prototype but has a very large length property), the process enters an intensive loop that consumes 100% CPU and hangs indefinitely. This issue has been patched in version 7.0.5.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Trends
Current EPSS score: 0.47%• Percentile: 40%
Techniques & Countermeasures
- CWE-400•Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource.
- CWE-834•Excessive Iteration
The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.
Affected Systems
- chainguard•airflow-2
all
- chainguard•airflow-core-2
all
- chainguard•arangodb-3.11
< 3.11.14.5-r4
- chainguard•arangodb-3.12
all | < 3.12.11-r1
- chainguard•argo-workflows-ui-3.6
< 3.6.19-r6
- chainguard•argo-workflows-ui-3.7
< 3.7.13-r2
- chainguard•argo-workflows-ui-4.0
< 4.0.4-r6
- chainguard•drupal-11.3
< 11.3.13-r3
- chainguard•gitlab-rails-ce-18.1
all
- chainguard•gitlab-rails-ce-18.10
all
- chainguard•gitlab-rails-ce-18.11
all
- chainguard•gitlab-rails-ce-18.5
all
- chainguard•gitlab-rails-ce-18.6
all
- chainguard•gitlab-rails-ce-18.7
all
- chainguard•gitlab-rails-ce-18.8
all
- chainguard•gitlab-rails-ce-18.9
all
- chainguard•gitlab-rails-ce-19.0
all | < 19.0.3-r1
- chainguard•gitlab-rails-ce-19.1
all | < 19.1.7-r6
- chainguard•gitlab-rails-ce-19.2
all | < 19.2.5-r2
- chainguard•gitlab-rails-ce-19.3
< 19.3.1-r6
- chainguard•gitlab-rails-ce-fips-18.1
all | < 18.1.6-r15
- chainguard•gitlab-rails-ce-fips-18.10
all
- chainguard•gitlab-rails-ce-fips-18.11
all
- chainguard•gitlab-rails-ce-fips-18.5
all
- chainguard•gitlab-rails-ce-fips-18.6
all
- chainguard•gitlab-rails-ce-fips-18.7
all
- chainguard•gitlab-rails-ce-fips-18.8
all
- chainguard•gitlab-rails-ce-fips-18.9
all
- chainguard•gitlab-rails-ce-fips-19.0
all
- chainguard•gitlab-rails-ce-fips-19.1
all | < 19.1.1-r1 | < 19.1.7-r7
- chainguard•gitlab-rails-ce-fips-19.2
all | < 19.2.5-r2
- chainguard•gitlab-rails-ce-fips-19.3
< 19.3.1-r3
- chainguard•katib-earlystopping
< 0.19.0-r31
- chainguard•katib-suggestion-goptuna-compat
all
- chainguard•katib-suggestion-hyperband
< 0.19.0-r31
- chainguard•katib-suggestion-hyperopt
< 0.19.0-r31 | < 0.19.0-r40
- chainguard•katib-suggestion-nas-darts
< 0.19.0-r31
- chainguard•katib-suggestion-nas-enas
< 0.19.0-r31
- chainguard•katib-suggestion-optuna-enas
< 0.19.0-r31
- chainguard•katib-suggestion-pbt-enas
< 0.19.0-r31
- chainguard•katib-suggestion-skopt-enas
< 0.19.0-r31
- chainguard•katib-tfevent-metricscollector
< 0.19.0-r31
- chainguard•langfuse-fips-3.152
all
- chainguard•langfuse-fips-3.152-worker
all
- chainguard•librechat
< 0.8.4-r5 | < 0.8.4-r3
- chainguard•opensearch-dashboards-2
< 2.19.5-r10
- chainguard•opensearch-dashboards-2-fips
< 2.19.5-r10
- chainguard•sqlpad
< 7.5.7-r28
- chainguard•tileserver-gl
< 5.5.0-r12
- chainguard•tileserver-gl-fips
< 5.5.0-r12
Showing first 50 affected entries in server-rendered view.
References (8)
- https://github.com/yahoo/serialize-javascript/security/advisories/GHSA-qj8w-gfj5-8c6v
- https://github.com/yahoo/serialize-javascript/commit/f147e90269b58bb6e539cfdf3d0e20d6ad14204b
- https://github.com/yahoo/serialize-javascript
- https://github.com/yahoo/serialize-javascript/releases/tag/v7.0.5
- https://nvd.nist.gov/vuln/detail/CVE-2026-34043
- https://github.com/yahoo/serialize-javascript/releases/tag/v5.0.0
- https://security-tracker.debian.org/tracker/CVE-2026-34043
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34043.json