# CVE-2026-57126: praisonaiagents: SSRF guard validates literal IPs only and never resolves DNS

> Attacker-controlled hostnames bypass SSRF checks to access internal resources, exposing sensitive data to the AI agent.

- **Severity:** High 8.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 14 Sep 2026
- **Updated:** 14 Sep 2026
- **Also known as:** GHSA-vxgj-xg5c-p4h7, PYSEC-2026-3535

## What is CVE-2026-57126?

CVE-2026-57126 is a high-severity server-side request forgery vulnerability in MervinPraison PraisonAI, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.58, SpiderTools._validate_url calls _host_is_blocked, which checks literal host encodings but does not resolve DNS names before scrape_page, crawl, extract_links, extract_text, or URL-mention fetches connect. An attacker-controlled hostname resolving to a loopback, private, link-local, or cloud-metadata address therefore bypasses the SSRF policy without a rebinding race and can expose internal responses to the agent. This issue is fixed in praisonaiagents 1.6.58.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-57126?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `praisonaiagents` | PyPI | All versions | 1.6.59 |
| `praisonaiagents` | PyPI | All versions | 1.6.59 |
| `praisonaiagents` | PyPI | All versions | 1.6.59 |

## How do I fix CVE-2026-57126?

Upgrade praisonaiagents to 1.6.59 or later.

## Is CVE-2026-57126 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57126 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-57126 and fix it if it is affected.

What it is: CVE-2026-57126 is a high-severity server-side request forgery vulnerability in MervinPraison PraisonAI, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57126 exists.

Affected packages and fixed versions:
- praisonaiagents (PyPI): affected all versions; fixed in 1.6.59
- praisonaiagents (PyPI): affected all versions; fixed in 1.6.59
- praisonaiagents (PyPI): affected all versions; fixed in 1.6.59

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-2026-57126/ (Markdown: https://insights.sbomify.com/CVE-2026-57126/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-57126
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-57126
- OSV: https://osv.dev/vulnerability/CVE-2026-57126

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-57126/
Summaries are generated and may contain mistakes; the official description above is the record.