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Fencer Intel
high 8.5

CVE-2026-55108 json

KubeVela Terraform remote loader DoS via unbounded file read

published 2mo ago modified last mo. also EUVD-2026-67792 , GHSA-fmgp-q6jx-gg3x , GO-2026-6312

cvss
8.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

KubeVela is an open source application delivery platform. Prior to 1.9.14, from 1.10.0-alpha.1 until 1.10.9, and from 1.11.0-alpha.1 until 1.11.0-alpha.4, the Terraform remote configuration loader in pkg/controller/utils/capability.go, GetTerraformConfigurationFromRemote, clones a repository supplied through a core.oam.dev/v1beta1 ComponentDefinition and follows repository-controlled variables.tf or main.tf symlinks. A user with permission to create or update ComponentDefinition objects can point variables.tf to /dev/zero through terraform.path, after which os.Stat and os.ReadFile follow the link and read an unbounded stream before ParseTerraformVariables or HCL parsing can reject the content. The read can exhaust memory, OOM-kill the cluster-wide vela-core controller, cause repeated Pod restarts, and pressure node memory when no effective container limit is configured. This issue is fixed in versions 1.9.14, 1.10.9, and 1.11.0-alpha.4.

Patch / fix

  • go github.com/oam-dev/kubevela 1.9.14, 1.10.9, 1.11.0-alpha.4
  • linuxfoundation kubevela 1.9.14, 1.10.9, 1.11.0-alpha.4
  • govulncheck-vulndb SLES 16.0, SLES for SAP applications 16.0 0.0.20260902T191204-160000.1.1

suse advisories SUSE-SU-2026:23692-1SUSE-SU-2026:23712-1

  • govulncheck-vulndb openSUSE Leap 16.0 0.0.20260902T191204-160000.1.1

opensuse advisories openSUSE-SU-2026:21812-1

Is CVE-2026-55108 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2mo ago

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-11).

Exploits and checks

  • github.com https://github.com/kubevela/kubevela/security/advisories/GHSA-fmgp-q6jx-gg3x referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H
GitHub 3.1 8.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H

Affected packages

ecosystem package affected fixed in
go github.com/oam-dev/kubevela
<1.9.14
>=1.10.0-alpha.1, <1.10.9
>=1.11.0-alpha.1, <1.11.0-alpha.4
1.9.14
1.10.9
1.11.0-alpha.4

Affected products

  • kubevela kubevela

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.