Description
A vulnerability was determined in Tencent RapidJSON 1.1.0. Impacted is the function GetCachedPowerByIndex in the library include/rapidjson/internal/diyfp.h. This manipulation of the argument decimalPosition causes out-of-bounds read. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Tencent | RapidJSON | 1.1.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | rapidjson | No fix yet | — |
| Debian 13 | rapidjson | No fix yet | — |
| Debian 12 | rapidjson | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | rapidjson | No fix yet | — |
| Ubuntu 26.04 LTS | rapidjson | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | rapidjson | No fix yet | — |
| Ubuntu Pro 22.04 LTS | rapidjson | No fix yet | — |
| Ubuntu Pro 20.04 LTS | rapidjson | No fix yet | — |
| Ubuntu Pro 18.04 LTS | rapidjson | No fix yet | — |
| Ubuntu Pro 16.04 LTS | rapidjson | No fix yet | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | opencc +1 | No fix yet | — |
References
- VDB-433010 | Tencent RapidJSON diyfp.h GetCachedPowerByIndex out-of-bounds vdb-entry technical-description
- VDB-433010 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-124586 | CVE Analysis and Report third-party-advisory
- Submit #1039172 | tencent RapidJSON 1.1.0 Out-of-Bounds Read third-party-advisory
- https://github.com/Tencent/rapidjson/issues/2405 exploit issue-tracking
- https://github.com/Tencent/rapidjson/ product