# CVE-2026-11312: bytedance InfiniStore KV Map infinistore.h purge_kv_map algorithmic complexity

> Local attackers can cause denial of service in InfiniStore KV Map via inefficient algorithmic complexity in purge_kv_map.

- **Severity:** Medium 4.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Jun 2026
- **Updated:** 5 Jun 2026
- **Also known as:** GHSA-2vrg-7rqv-prf9, PYSEC-2026-3469

## What is CVE-2026-11312?

CVE-2026-11312 is a medium-severity denial of service vulnerability in bytedance InfiniStore, published on 5 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability was found in bytedance InfiniStore up to 0.2.33. The impacted element is the function purge_kv_map in the library /src/infinistore.h of the component KV Map Handler. Performing a manipulation results in inefficient algorithmic complexity. The attack requires a local approach. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-407 (Inefficient Algorithmic Complexity), CWE-404 (Improper Resource Shutdown or Release)

## Which versions are affected by CVE-2026-11312?

3 open source packages ship an affected version, including infinistore.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `infinistore` | PyPI | All versions to 0.2.33 | None |
| `infinistore` | PyPI | All versions to 0.2.33 | None |
| `infinistore` | PyPI | All versions to 0.2.33 | None |

## How do I fix CVE-2026-11312?

No fix has been published for CVE-2026-11312 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-11312 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11312 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11312 and fix it if it is affected.

What it is: CVE-2026-11312 is a medium-severity denial of service vulnerability in bytedance InfiniStore, published on 5 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11312 exists.

Affected packages and fixed versions:
- infinistore (PyPI): affected all versions up to 0.2.33; no fix listed
- infinistore (PyPI): affected all versions up to 0.2.33; no fix listed
- infinistore (PyPI): affected all versions up to 0.2.33; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-11312/ (Markdown: https://insights.sbomify.com/CVE-2026-11312/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11312
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11312
- OSV: https://osv.dev/vulnerability/CVE-2026-11312

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11312/
Summaries are generated and may contain mistakes; the official description above is the record.