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CVE-2025-68156

26
FAUCET Score

CVE-2025-68156 is a denial-of-service vulnerability affecting Expr, an expression language for Go, prior to version 1.17.7. Certain builtin functions (e.g., flatten, min, max) can cause a stack overflow panic and application crash when processing deeply nested or cyclic data structures without a maximum recursion depth. This vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-exploitable issue with low attack complexity that can lead to high availability impact. While there is no evidence of active exploitation or public exploit code, and community discussion is minimal, the FAUCET Risk Score is 85/100, highlighting its potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.17.7CPE matchmatch criteria
cpe:2.3:a:expr-lang:expr:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 11th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (52)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/expr-lang/exprFixed in: 1.17.7
microsoftpatch availablevia msrc
Product: azl3 keda 2.14.1-7 on Azure Linux 3.0Fixed in: 2.14.1-8
microsoftpatch availablevia msrc
Product: azl3 coredns 1.11.4-11 on Azure Linux 3.0Fixed in: 1.11.4-12
microsoftpatch availablevia msrc
Product: 19347-17084Fixed in: 2.14.1-8
microsoftpatch availablevia msrc
Product: 20760-17084Fixed in: 1.11.4-12
redhatpatch availablevia redhat_api
Product: Custom Metric Autoscaler operator for Red Hat Openshift 2.18Fixed in: custom-metrics-autoscaler/custom-metrics-autoscaler-adapter-rhel9:sha256:cf3f3bf999c1065bc3d0b7580bd922daec789f98da5812069cea1333520f876b
View patch
redhatpatch availablevia redhat_api
Product: Custom Metric Autoscaler operator for Red Hat Openshift 2.18Fixed in: custom-metrics-autoscaler/custom-metrics-autoscaler-admission-webhooks-rhel9:sha256:c25f659d9e7e50206a86e3617efbc7f2f4b750ced52fcc18a38bf03b4d89660a
View patch
redhatpatch availablevia redhat_api
Product: Custom Metric Autoscaler operator for Red Hat Openshift 2.18Fixed in: custom-metrics-autoscaler/custom-metrics-autoscaler-operator-bundle:sha256:e746b1aafcdcd82a6d2d069478d2870ada48c9f026d3119fc0977b333138c4ba
View patch
redhatpatch availablevia redhat_api
Product: Custom Metric Autoscaler operator for Red Hat Openshift 2.18Fixed in: custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9:sha256:d0a2e099d9b87ceb1aa7b716a325c446172d1f4b365352e3c275dbfb604cd7b2
View patch
redhatpatch availablevia redhat_api
Product: Custom Metric Autoscaler operator for Red Hat Openshift 2.18Fixed in: custom-metrics-autoscaler/custom-metrics-autoscaler-rhel9-operator:sha256:7c238fccaf2517e70f439cfbb860a7fbeaa27e6a295bc6a85b321179d65b2b23
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Advanced Cluster Management for Kubernetes 2.14Fixed in: rhacm2/acm-grafana-rhel9:sha256:68fe1d1b794296791d05fd62ea5be3c8976fb9c46429993b34672d68b2546be3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-data-science-pipelines-argo-workflowcontroller-rhel9:sha256:36e001b965f7eebd64b872def5c57231de0819469d7a26ea86df744f28c2785a
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-kserve-agent-rhel9:sha256:d88abafc4a46463442434b6622577fdb3ba938496a50c7afe3af3fbb0b2b091e
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-kserve-controller-rhel9:sha256:8a3021116d34e958681022873a7a249f9331031df1659181a593c9abc48ca697
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-kserve-router-rhel9:sha256:584315e5697664ba0a6814033c7bc179bf400aac665627bf1291b83c527ab5d2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-ml-pipelines-api-server-v2-rhel9:sha256:468cd1ec5882a82f2e3d7a0c5634d80bc272908703194e5950e3eebf5b2f6b54
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-ml-pipelines-driver-rhel9:sha256:b9d03b00198d04bee1f7c5f83f90f556c7eab3a462a926d7170bedc7a22b7520
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-ml-pipelines-launcher-rhel9:sha256:67deadc75f0552f04b3815ba81615edfa7909e03b1505cf74c315db6e5a8ca76
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-ml-pipelines-persistenceagent-v2-rhel9:sha256:ebef4624564bb028554772ffafca61c2d74137d453566b7b1c04ac2e3015bb90
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-ml-pipelines-scheduledworkflow-v2-rhel9:sha256:f77a24d488369ffa73ac4275f3b600c149279c0cea6304d3d4333d2d49b5baea
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-model-controller-rhel9:sha256:1c985e860d986a8f7be4fe2afc7176d9a905f187252cdb61206c81cf8389aa45
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-model-registry-rhel9:sha256:419c6ec3e5fea5d957a8e4cd5510995d2f4a6b0537fe94ea82dfebab975a42a2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-data-science-pipelines-argo-argoexec-rhel9:sha256:56615395c62e26f3ef9bd267c0d5245331b8c67508df4bd8bbc83d72c4ef3b99
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-data-science-pipelines-argo-workflowcontroller-rhel9:sha256:d2cb739f949dc4ec9617bb9470a8482a8011077043e06e735ab0c9d7d1cac381
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-ml-pipelines-api-server-v2-rhel9:sha256:ade80e2ecb6fa56c20539e11677c29e57a1e20b5ce60f8414fd8ff3e83c9bc28
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-ml-pipelines-driver-rhel9:sha256:3439c67a60c8323eb88f0181e8f811e5bdd7b51169f8b8cc687ab2148d1bfabe
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-ml-pipelines-launcher-rhel9:sha256:f01860f904557f887d8aafe42143c63352d6cb496dc727c265f14e3c2d296e06
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-ml-pipelines-persistenceagent-v2-rhel9:sha256:7f362050312693129d3a15b6eed4fa06576d6529a99bc864f273c55145ae14ec
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-ml-pipelines-scheduledworkflow-v2-rhel9:sha256:f0511f3768e51b6801b66c91b302010e6197facb71a0b7777c4d3ad3039b6c88
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-model-controller-rhel9:sha256:0ea603487b204f43ebddb1514500cdeaa02a0b763a627e4e10979deec60b7d28
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-model-registry-rhel9:sha256:9cf7f5bdebf6b53fce9cfed4fe530c380f36bb1d60120b53c06043371863d4e6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift GitOps 1.17Fixed in: openshift-gitops-1/argocd-rhel8:sha256:7bec6ba526ade9f626672e69d9b4a22df5a4d5d6b65a3d7fd681055968e85db8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift GitOps 1.17Fixed in: openshift-gitops-1/argocd-rhel9:sha256:19ee8d67235801b83af21c52b92b0855e34f959700eb400d2db455a50b91f512
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift GitOps 1.18Fixed in: openshift-gitops-1/argocd-rhel8:sha256:0eb572fc96ae2e1973ce43515f03121965600bb09ef0b995eb467f5965c2246c
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift GitOps 1.18Fixed in: openshift-gitops-1/argocd-rhel9:sha256:779c33c3679e47ebca0af343ba6e26d2723cfc9affdcee4df54078ef68278016
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift AI 2.25Fixed in: rhoai/odh-data-science-pipelines-argo-argoexec-rhel9:sha256:c8fba2ae05c577c06c90364b6d94d92d5470c3150f07c001bbdfed40707220e2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: opentelemetry-collector-0:0.135.0-2.el10_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 10.0 Extended Update SupportFixed in: opentelemetry-collector-0:0.135.0-2.el10_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: opentelemetry-collector-0:0.135.0-2.el9_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.4 Extended Update SupportFixed in: opentelemetry-collector-0:0.135.0-2.el9_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.6 Extended Update SupportFixed in: opentelemetry-collector-0:0.135.0-2.el9_6
View patch
redhatno patchvia redhat_api
Product: Deployment Validation OperatorFixed in: dvo/deployment-validation-rhel8-operator
redhatno patchvia redhat_api
Product: Red Hat OpenShift AI (RHOAI)Fixed in: rhoai/odh-ml-pipelines-launcher-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift AI (RHOAI)Fixed in: rhoai/odh-ml-pipelines-persistenceagent-v2-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift AI (RHOAI)Fixed in: rhoai/odh-ml-pipelines-scheduledworkflow-v2-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift AI (RHOAI)Fixed in: rhoai/odh-ml-pipelines-driver-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift AI (RHOAI)Fixed in: rhoai/odh-ml-pipelines-api-server-v2-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift AI (RHOAI)Fixed in: rhoai/odh-data-science-pipelines-argo-workflowcontroller-rhel8
redhatno patchvia redhat_api
Product: Red Hat OpenShift AI (RHOAI)Fixed in: rhoai/odh-data-science-pipelines-argo-argoexec-rhel8
redhatno patchvia redhat_api
Product: Red Hat Ceph Storage 8Fixed in: rhceph/grafana-rhel9
redhatend of lifevia redhat_api
Product: Red Hat OpenShift GitOpsFixed in: openshift-gitops-1/argo-rollouts-rhel8

Vendor Advisories (3)

goGHSA-cfpf-hrx2-8rv6high

Expr has Denial of Service via Unbounded Recursion in Builtin Functions

Dec 16, 2025
redhatCVE-2025-68156Important

github.com/expr-lang/expr: Expr: Denial of Service via uncontrolled recursion in expression evaluation

Dec 16, 2025
microsoft2025-Dec/CVE-2025-68156Important

Expr has Denial of Service via Unbounded Recursion in Builtin Functions

Dec 9, 2025

References

github.com / expr-lang/expr/pull/870
Issue TrackingPatch
github.com / expr-lang/expr/security/advisories/GHSA-cfpf-hrx2-8rv6
MitigationPatchVendor Advisory