# gosaml2 CBC Padding Panic , Unauthenticated Process Crash

Source: https://junglewise.ai/threats/gosaml2-cbc-padding-panic-unauthenticated-process-crash-d48b217d  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-18  
License: CC BY 4.0 with a link back

Severity: medium · CVSS 4 · Published 2026-03-18

gosaml2 CBC Padding Panic — Unauthenticated Process Crash

Technologies: [github.com/russellhaering/gosaml2 (Go)](https://junglewise.ai/threats/technologies/github-com-russellhaering-gosaml2). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Medium severity, with a CVSS score of 4, published 18 March 2026.

**Which products and versions are affected?** github.com/russellhaering/gosaml2 (Go) SEMVER:introduced=0,fixed=0.11.0.

**Is there a fix for This vulnerability?** Yes. github.com/russellhaering/gosaml2 (Go): upgrade to 0.11.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run github.com/russellhaering/gosaml2 (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- github.com/russellhaering/gosaml2 (Go): upgrade to 0.11.0 or later

  ```sh
  go get github.com/russellhaering/gosaml2@v0.11.0
  ```


## Affected products

- github.com/russellhaering/gosaml2 (Go) SEMVER:introduced=0,fixed=0.11.0

## Related threats

- [GO-2026-4760 - CBC Padding Panic , Unauthenticated Process Crash in github.com/russellhaering/gosaml2](https://junglewise.ai/threats/go-2026-4760-cbc-padding-panic-unauthenticated-process-crash-in-github-55e5dadf)
- [GO-2026-4764 - Unsigned SAML LogoutRequest Acceptance in gosaml2 in github.com/russellhaering/gosaml2](https://junglewise.ai/threats/go-2026-4764-unsigned-saml-logoutrequest-acceptance-in-gosaml2-in-6db71f2a)
- [Unsigned SAML LogoutRequest Acceptance in gosaml2](https://junglewise.ai/threats/unsigned-saml-logoutrequest-acceptance-in-gosaml2-7f4881c4)
- [GO-2023-1602 - Denial of service via deflate decompression bomb in github.com/russellhaering/gosaml2](https://junglewise.ai/threats/cve-2023-26483-gosaml2-vulnerable-to-denial-of-service-via-deflate-decompression)
- [Signature Validation Bypass](https://junglewise.ai/threats/signature-validation-bypass-bf82bf50)