valkey-io valkey Module Timer module.c moduleTimerHandler double free (valkey-io valkey)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.29 % · percentile 21 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- VulDB
- NVD status
- Deferred
Description
A vulnerability was determined in valkey-io valkey 9.1.0. Impacted is the function moduleTimerHandler of the file src/module.c of the component Module Timer Subsystem. This manipulation causes double free. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name: b349fe2821e3998534b1454c1b64a478daf8c6b7. To fix this issue, it is recommended to deploy a patch.
Weaknesses (CWE)
- CWE-415 — Double Free
- CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- https://vuldb.com/vuln/397172
- https://vuldb.com/vuln/397172/cti
- https://vuldb.com/cve/CVE-2026-82677
- https://vuldb.com/submit/893959
- https://github.com/valkey-io/valkey/issues/4200
- https://github.com/valkey-io/valkey/pull/4211
- https://github.com/user-attachments/files/30118801/PoC.zip
- https://github.com/valkey-io/valkey/commit/b349fe2821e3998534b1454c1b64a478daf8c6b7
- https://github.com/valkey-io/valkey/
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 4.0 | MEDIUM 4.8 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| CVSS 3.1 | LOW 2.4 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C | VulDB |
| CVSS 3.0 | LOW 2.4 | CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C | VulDB |
| CVSS 2.0 | LOW 3.3 | AV:N/AC:L/Au:M/C:N/I:N/A:P/E:POC/RL:OF/RC:C | VulDB |
| CVSS 4.0 | LOW 1.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | NVD · cna@vuldb.com (Secondary) |
| CVSS 3.1 | LOW 2.4 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L | NVD · cna@vuldb.com (Secondary) |
| CVSS 2.0 | LOW 3.3 | AV:N/AC:L/Au:M/C:N/I:N/A:P | NVD · cna@vuldb.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-68457
- GCVE · GCVE-0-2026-82677
Affected products
| Product | Versions |
|---|---|
| valkey-io · valkey | affected 9.1.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |