fix(deps): update @aws-sdk/client-s3 to fix CVE-2026-25896#17046
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fix(deps): update @aws-sdk/client-s3 to fix CVE-2026-25896#17046
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Updates @aws-sdk/client-s3 from ^3.837.0 to ^3.1012.0 to resolve critical vulnerability in transitive dependency fast-xml-parser. CVE-2026-25896 (CVSS 9.3): Entity encoding bypass via regex injection in DOCTYPE entity names allows XSS when parsed XML output is rendered. Fixes: https://github.com/getsentry/sentry-docs/security/dependabot/258
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sergical
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Mar 19, 2026
constantinius
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## DESCRIBE YOUR PR Updates `@aws-sdk/client-s3` from `^3.837.0` to `^3.1012.0` to resolve a critical security vulnerability in the transitive dependency `fast-xml-parser`. ### Vulnerability Details | Field | Value | |-------|-------| | **CVE** | [CVE-2026-25896](https://nvd.nist.gov/vuln/detail/CVE-2026-25896) | | **GHSA** | [GHSA-m7jm-9gc2-mpf2](GHSA-m7jm-9gc2-mpf2) | | **Severity** | **CRITICAL** (CVSS 9.3) | | **CWE** | CWE-185 (Incorrect Regular Expression) | | **Vulnerable** | `fast-xml-parser >= 5.0.0, < 5.3.5` | | **Fixed in** | `fast-xml-parser 5.3.5+` | ### Summary A period (`.`) in a DOCTYPE entity name is treated as a regex wildcard during entity replacement, allowing attackers to shadow built-in XML entities (`<`, `>`, `&`, etc.) with arbitrary values. This bypasses entity encoding and leads to XSS when parsed output is rendered. ### Changes - Updated `@aws-sdk/client-s3` to latest (`3.1012.0`) - This pulls in `@aws-sdk/xml-builder` which uses `fast-xml-parser@5.5.6` (patched) ### Verification ``` $ pnpm why fast-xml-parser fast-xml-parser@5.3.6 ← from @google-cloud/storage (already patched) fast-xml-parser@5.5.6 ← from @aws-sdk (now patched) ``` All tests pass (149/149). Fixes https://github.com/getsentry/sentry-docs/security/dependabot/258 ## IS YOUR CHANGE URGENT? - [x] Urgent deadline (GA date, etc.): Security vulnerability fix - [ ] Other deadline: - [ ] None: Not urgent, can wait up to 1 week+ ## PRE-MERGE CHECKLIST - [x] Checked Vercel preview for correctness, including links - [ ] PR was reviewed and approved by any necessary SMEs (subject matter experts) - [ ] PR was reviewed and approved by a member of the [Sentry docs team](https://github.com/orgs/getsentry/teams/docs) Co-authored-by: Shannon Anahata <shannonanahata@gmail.com>
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DESCRIBE YOUR PR
Updates
@aws-sdk/client-s3from^3.837.0to^3.1012.0to resolve a critical security vulnerability in the transitive dependencyfast-xml-parser.Vulnerability Details
fast-xml-parser >= 5.0.0, < 5.3.5fast-xml-parser 5.3.5+Summary
A period (
.) in a DOCTYPE entity name is treated as a regex wildcard during entity replacement, allowing attackers to shadow built-in XML entities (<,>,&, etc.) with arbitrary values. This bypasses entity encoding and leads to XSS when parsed output is rendered.Changes
@aws-sdk/client-s3to latest (3.1012.0)@aws-sdk/xml-builderwhich usesfast-xml-parser@5.5.6(patched)Verification
All tests pass (149/149).
Fixes https://github.com/getsentry/sentry-docs/security/dependabot/258
IS YOUR CHANGE URGENT?
PRE-MERGE CHECKLIST