CVE-2026-56748: Improper validation of symbolic links in the Pack Git import feature in Cribl Stream before 4.18.2 allows a remote authenticated attacker with Pack import and pipeline preview perm
Improper validation of symbolic links in the Pack Git import feature in Cribl Stream before 4.18.2 allows a remote authenticated attacker with Pack import and pipeline preview permissions to execute arbitrary code as the Cribl server process via a crafted Git repository containing a symbolic link in the pack's functions directory.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-56748
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-567480.57% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 44% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-56748 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Improper validation of
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-67294: FreeRDP before 3.29.0 improperly validates the Extended Key Usage (EKU) purpose of the peer ce…nvd · 2026-08-01
- mediumCVE-2026-67293: FreeRDP before 3.29.0 (affected versions <= 3.28.0) contains an improper certificate hostname …nvd · 2026-08-01
- mediumCVE-2025-62347: HCL iControl was affected by Improper Input Validation vulnerability. It is vulnerable to unex…nvd · 2026-07-31
- mediumCVE-2026-66720: The GOOSE subscriber component improperly validates the UTC timestamp field in unauthenticated…nvd · 2026-07-30
- criticalCVE-2026-13435: IBM Langflow OSS 1.0.0 through 1.10.1 contains an improper input validation vulnerability in t…nvd · 2026-07-30
- highCVE-2026-22622: Improper input validation in one of the session management interface of Eaton's Tripp Lite ser…nvd · 2026-07-30
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