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Tracking
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-h9h9-2rmf-rvhp | Junrar: RarVM VM_JMP maxOpCount bypass causes infinite CPU loop during RAR4 extraction |
Sun, 18 Oct 2026 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Junrar
Junrar junrar |
|
| Vendors & Products |
Junrar
Junrar junrar |
Fri, 16 Oct 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 15 Oct 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Junrar is an open source Java RAR archive library. Prior to 7.6.1, RarVM.ExecuteCode in src/main/java/com/github/junrar/unpack/vm/RarVM.java can repeatedly execute a VM_JMP instruction whose target is greater than or equal to the prepared program's codeSize. The setIP() function returns success without changing the instruction pointer or decrementing maxOpCount, and the jump handler continues before loop-end accounting, leaving both values unchanged. A crafted RAR4 archive can therefore keep an extraction thread in an infinite CPU loop and exhaust archive-processing worker capacity. The RAR virtual machine does not expose native process execution, so the supported impact is availability loss rather than code execution. This issue is fixed in version 7.6.1. | |
| Title | Junrar: RarVM VM_JMP maxOpCount bypass causes infinite CPU loop during RAR4 extraction | |
| Weaknesses | CWE-835 | |
| References |
| |
| Metrics |
cvssV3_1
|
Subscriptions
No data.
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-10-16T17:12:14.687Z
Reserved: 2026-09-24T14:16:20.200Z
Link: CVE-2026-97370
Updated: 2026-10-16T15:22:21.685Z
Status : Deferred
Published: 2026-10-15T19:17:49.983
Modified: 2026-10-16T20:04:29.760
Link: CVE-2026-97370
No data.
OpenCVE Enrichment
Updated: 2026-10-18T18:30:14Z
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CWE-835
Loop with Unreachable Exit Condition ('Infinite Loop')
Github GHSA