Cribl Stream up to 4.18.1 Pack Git Import Feature permission

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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8.6$0-$5k1.40

Summaryinfo

A vulnerability identified as very critical has been detected in Cribl Stream up to 4.18.1. Impacted is an unknown function of the component Pack Git Import Feature. Performing a manipulation results in permission. This vulnerability was named CVE-2026-56748. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as very critical has been found in Cribl Stream up to 4.18.1. This affects some unknown functionality of the component Pack Git Import Feature. The manipulation with an unknown input leads to a permission vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at docs.cribl.io. This vulnerability is uniquely identified as CVE-2026-56748 since 06/22/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/27/2026). MITRE ATT&CK project uses the attack technique T1222 for this issue.

Upgrading to version 4.18.2 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.6

VulDB Base Score: 9.0
VulDB Temp Score: 8.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Stream 4.18.2

Timelineinfo

06/22/2026 CVE reserved
07/27/2026 +35 days Advisory disclosed
07/27/2026 +0 days VulDB entry created
07/27/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: docs.cribl.io
Status: Confirmed

CVE: CVE-2026-56748 (🔒)
GCVE (CVE): GCVE-0-2026-56748
GCVE (VulDB): GCVE-100-383553

Entryinfo

Created: 07/27/2026 22:05
Changes: 07/27/2026 22:05 (54)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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