CVE-2024-25631: Unencrypted traffic between pods when using Wireguard and an external kvstore
Vulnerability summary
CVE-2024-25631 is a medium (CVSS 6.1) Missing Encryption of Sensitive Data vulnerability in cilium. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 0 · Related 8Timeline
- 20-02-2024PublishedVulnerability first disclosed.
- 26-08-2024Last modifiedVulnerability information updated.
Description
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. For Cilium users who have enabled an external kvstore and Wireguard transparent encryption, traffic between pods in the affected cluster is not encrypted. This issue affects Cilium v1.14 before v1.14.7 and has been patched in Cilium v1.14.7. There is no workaround to this issue.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · WolfiEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
- OSV · GoEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
- OSV · ChainguardEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
- NVDNIST5.3MediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NDiffers
EPSS trend
Probability
0.20%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.20% on 22-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-311Missing Encryption of Sensitive DataThe product does not encrypt sensitive or critical information before storage or transmission.
- CWE-319Cleartext Transmission of Sensitive InformationThe product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.
Affected systems
Chainguard20 products
- cilium-1.15All versions (No fix recorded)
- cilium-1.15-clustermesh-apiserverAll versions (No fix recorded)
- cilium-1.15-container-initAll versions (No fix recorded)
- cilium-1.15-container-init-compatAll versions (No fix recorded)
- cilium-1.15-hubble-relayAll versions (No fix recorded)
Wolfi2 products
- hubble< 0.13.0-r0
- hubble-ui-backend< 0.13.3-r1
Cilium1 product
- cilium< 1.14.7 | ≥ 1.14.0, < 1.14.7
Github.com/cilium1 product
- cilium≥ 1.14.0, < 1.14.7
4 vendors · 24 products
References
7 links- github.com/cilium/cilium/security/advisories/GHSA-x989-52fc-4vr4X Refsource CONFIRMAdvisoryWEBVendor Advisory
- github.com/cilium/ciliumPACKAGE