# CVE-2026-73551: ecs-service-connect-agent: Fixed URL normalization of dot and dot-dot path segments containing parameters, which could cause access-control comp...

CVE-2026-73551 is fixed in ecs-service-connect-agent on 1 platform by ALAS2023-2026-2149 (version v1.39.1.0-1.amzn2023), released September 14, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-73551
- Priority: High
- CVSS: n/a (important)
- EPSS: 0.0053
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 14, 2026

## Description

Fixed URL normalization of dot and dot-dot path segments containing parameters, which could cause access-control components and upstream applications to interpret a request path differently.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ecs-service-connect-agent amzn 2023 | v1.39.1.0-1.amzn2023 | [ALAS2023-2026-2149](https://patchblox.com/security/data/fix/linux/alas2023-2026-2149.md) | Sep 14, 2026 |

---

Data as of 2026-11-11T13:47:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.