CVE-2026-19478 (GCVE-0-2026-19478)
Vulnerability from cvelistv5 – Published: 2026-08-17 20:04 – Updated: 2026-08-17 20:44Title
Improper Control of Generation of Code ('Code Injection') in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could allow an unauthenticated user to remotely modify or delete public projects and user data via a GraphQL directive.
Severity
9.4 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 20:43 UTC
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://gitlab.com/gitlab-org/gitlab/-/work_items… | |
| https://hackerone.com/reports/3926431 | technical-descriptionexploitpermissions-required |
| https://docs.gitlab.com/releases/patches/patch-re… |
Impacted products
CIRCL
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 07b77452-0e39-4141-9d36-78ce09d36b06
Exploited: Yes
Characteristics
Authentication Required:
No
Local Access Required:
Remote
Severity:
100.0
Timestamps
First Seen: 2026-08-21
Asserted: 2026-08-21
Last Seen: 2026-08-21
Created: 2026-10-02 08:56 CEST
| Updated: 2026-08-21 13:37 CEST
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 81ae04e8-e7a9-4c6e-8e55-f2467c2f3f63
Exploited: Yes
Timestamps
First Seen: 2026-08-21
Asserted: 2026-08-21
Scope
Notes: Improper Control of Generation of Code ('Code Injection') in GitLab | Affected: GitLab / GitLab | CVSS: 9.4 (CRITICAL) | EPSS: 0.60204 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: previdian
Details
| Feed | Previdian (previdian.com) |
|---|---|
| Title | Improper Control of Generation of Code ('Code Injection') in GitLab |
| Cve Id | CVE-2026-19478 |
| Vendor | GitLab |
| Ghsa Id | GHSA-6WHR-XJJM-6PF8 |
| Product | GitLab |
| Added Date | 2026-08-21T07:04:25.000Z |
| Cvss Score | 9.4 |
| Epss Score | 0.60204 |
| Previous Ids | |
| Cvss Severity | CRITICAL |
| Virtual Patch | False |
| Cvss Estimated | False |
| Epss Percentile | 0.99112 |
| Used In Malware | unknown |
| Vulnerability Id | CVE-2026-19478 |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | True |
References
Created: 2026-10-02 09:09 CEST
| Updated: 2026-10-02 09:09 CEST
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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