CVE-2026-107608

MEDIUM 6.8

Published 2026-10-08 · Last modified 2026-10-08

Improper link resolution before file access in the asset bundling output handling in AWS aws-cdk-lib before 2.267.0 might allow a context-dependent actor to cause files from the build host to be published as the deployed asset. To remediate this issue, users should upgrade to version 2.267.0 or later.

NO EXPLOITATION SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.1%chance of exploitation in 30 days · 3rd percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

6.8CVSS 4.0 · MEDIUM

ConfidentialityHigh
IntegrityNone
AvailabilityNone

What an attacker needs

⚠Access: Requires local access to the host
✓Privileges: No account or privileges required
⚠User interaction: Succeeds with passive user activity
✓Complexity: No special conditions — reliably repeatable
✓Requirements: No special attack requirements

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot: 2026-10-26T13:52:32.101Z

Affected

Vendors Aws

Products Aws Cdk Lib

Weakness (CWE)

CWE-59: Improper link resolution before file access ('link following')

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

References and research data (JSON)

All CVSS metrics

MEDIUM 6.8 v4.0 · CNA Primary
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
MEDIUM 5.5 v3.1 · CNA Primary
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
MEDIUM 6.8 v4.0 · NVD Secondary
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
MEDIUM 5.5 v3.1 · NVD Secondary
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

Patches & mitigations

https://github.com/aws/aws-cdk/releases/tag/v2.267.0 patchrelease-notesCVE record · AMZN · Updated 2026-10-08T19:36:53.715Z
NVD · CVE-2026-107608 · Updated 2026-10-08T21:33:42.423

Advisories

https://aws.amazon.com/security/security-bulletins/2026-131-aws/ vendor-advisoryCVE record · AMZN · Updated 2026-10-08T19:36:53.715Z
NVD · CVE-2026-107608 · Updated 2026-10-08T21:33:42.423
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-95252 ADVISORYEUVD · EUVD-2026-95252

Sources: NVD · CVE.org · EPSS