vercel ai up to 3.0.97 PR Branch Name Interpolation prettier-on-automerge.yml run os command injection
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.7 | $0-$5k | 0.29 |
Summary
A vulnerability classified as critical was found in vercel ai up to 3.0.97. The affected element is the function run of the file .github/workflows/prettier-on-automerge.yml of the component PR Branch Name Interpolation. The manipulation results in os command injection.
This vulnerability is reported as CVE-2026-8767. The attack can be launched remotely. Moreover, an exploit is present.
The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability classified as critical has been found in vercel ai up to 3.0.97. Affected is the function run of the file .github/workflows/prettier-on-automerge.yml of the component PR Branch Name Interpolation. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.
The advisory is shared for download at gist.github.com. This vulnerability is traded as CVE-2026-8767. The exploitability is told to be difficult. It is possible to launch the attack remotely. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1202.
The exploit is shared for download at gist.github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Type
Vendor
Name
Version
- 3.0.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.0.10
- 3.0.11
- 3.0.12
- 3.0.13
- 3.0.14
- 3.0.15
- 3.0.16
- 3.0.17
- 3.0.18
- 3.0.19
- 3.0.20
- 3.0.21
- 3.0.22
- 3.0.23
- 3.0.24
- 3.0.25
- 3.0.26
- 3.0.27
- 3.0.28
- 3.0.29
- 3.0.30
- 3.0.31
- 3.0.32
- 3.0.33
- 3.0.34
- 3.0.35
- 3.0.36
- 3.0.37
- 3.0.38
- 3.0.39
- 3.0.40
- 3.0.41
- 3.0.42
- 3.0.43
- 3.0.44
- 3.0.45
- 3.0.46
- 3.0.47
- 3.0.48
- 3.0.49
- 3.0.50
- 3.0.51
- 3.0.52
- 3.0.53
- 3.0.54
- 3.0.55
- 3.0.56
- 3.0.57
- 3.0.58
- 3.0.59
- 3.0.60
- 3.0.61
- 3.0.62
- 3.0.63
- 3.0.64
- 3.0.65
- 3.0.66
- 3.0.67
- 3.0.68
- 3.0.69
- 3.0.70
- 3.0.71
- 3.0.72
- 3.0.73
- 3.0.74
- 3.0.75
- 3.0.76
- 3.0.77
- 3.0.78
- 3.0.79
- 3.0.80
- 3.0.81
- 3.0.82
- 3.0.83
- 3.0.84
- 3.0.85
- 3.0.86
- 3.0.87
- 3.0.88
- 3.0.89
- 3.0.90
- 3.0.91
- 3.0.92
- 3.0.93
- 3.0.94
- 3.0.95
- 3.0.96
- 3.0.97
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 5.8VulDB Meta Temp Score: 5.7
VulDB Base Score: 5.0
VulDB Temp Score: 4.6
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔒
CNA Base Score: 5.0
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Os command injectionCWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
05/17/2026 Advisory disclosed05/17/2026 VulDB entry created
05/23/2026 VulDB entry last update
Sources
Advisory: gist.github.comStatus: Not defined
CVE: CVE-2026-8767 (🔒)
GCVE (CVE): GCVE-0-2026-8767
GCVE (VulDB): GCVE-100-364392
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 05/17/2026 11:33Updated: 05/23/2026 06:14
Changes: 05/17/2026 11:33 (58), 05/23/2026 06:14 (41)
Complete: 🔍
Submitter: Eric-d
Cache ID: 216::103
Submit
Accepted
- Submit #811402: vercel ai @ai-sdk/[email protected] OS Command Injection (CWE-78) (by Eric-d)
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