# CVE-2026-48051: Papra: SSRF via HTTP redirect bypass in webhook delivery

> Authenticated users can bypass SSRF protections via HTTP redirects to access internal network resources in Papra.

- **Severity:** Low 3.5 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/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:** 27 Jul 2026
- **Updated:** 28 Jul 2026
- **Also known as:** GHSA-5g86-85rp-f9hx

## What is CVE-2026-48051?

CVE-2026-48051 is a low-severity server-side request forgery vulnerability in papra-hq papra, published on 27 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Papra is a minimalistic document management and archiving platform. Prior to version 26.5.0, Papra's webhook delivery system contains an SSRF protection bypass that allows any authenticated organisation member to cause the server to make HTTP requests to internal addresses — loopback, link-local, and RFC-1918 ranges. The SSRF protection validates the registered webhook URL but ignores redirect destinations. The HTTP client (ofetch) follows 3xx responses automatically, and the redirect target is never checked against the blocklist. An attacker registers a webhook pointing to an attacker-controlled server, which redirects incoming POSTs to any internal address. Exploitation was confirmed by live test against the official Docker image. The fix is a single-line change to the webhook HTTP client. This issue has been patched in version 26.5.0.

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

## Which versions are affected by CVE-2026-48051?

2 open source packages ship an affected version, including @papra/webhooks.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `@papra/webhooks` | npm | All versions | 0.3.3 |
| `@papra/webhooks` | npm | All versions | 0.3.3 |

## How do I fix CVE-2026-48051?

Upgrade @papra/webhooks to 0.3.3 or later.

## Is CVE-2026-48051 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48051 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-48051 and fix it if it is affected.

What it is: CVE-2026-48051 is a low-severity server-side request forgery vulnerability in papra-hq papra, published on 27 Jul 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-2026-48051 exists.

Affected packages and fixed versions:
- @papra/webhooks (npm): affected all versions; fixed in 0.3.3
- @papra/webhooks (npm): affected all versions; fixed in 0.3.3

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-2026-48051/ (Markdown: https://insights.sbomify.com/CVE-2026-48051/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-48051
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-48051
- OSV: https://osv.dev/vulnerability/CVE-2026-48051

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-48051/
Summaries are generated and may contain mistakes; the official description above is the record.