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Not in CISA KEV
MEDIUM severity

CVE-2017-13761 — magento2

MEDIUM

CVE-2017-13761 is a medium-severity (CVSS 6.5) Information Exposure vulnerability in fastly/magento2. A fix is available for fastly/magento2 — see the affected versions and patch details below.

Fastly Magento2 sensitive information disclosure

Also known asGHSA-vpq9-c67q-23fq
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 6, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.2%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs69th percentile — riskier than 69% of all scored CVEsHighest risk
0.00%0.57%1.15%1.72%0.3%1.2%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘fastly/magento2

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

The Fastly CDN module before 1.2.26 for Magento2, when used with a third-party authentication plugin, might allow remote authenticated users to obtain sensitive information from authenticated sessions via vectors involving caching of redirect responses.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistfastly/magento2all versions1.2.26composer require fastly/magento2:^1.2.26

Affected Products

1 product · 1 configurations
Application
fastlyfastly
≤ 1.2.25
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for fastly/magento2, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update fastly/magento2 to 1.2.26 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2017-13761 is resolved across your whole dependency graph.

  3. Workarounds

    Assume what was exposed is already known: rotate any credential, token or key that the affected component could return, restrict the endpoint to callers that genuinely need it, and strip sensitive fields from responses and error output at the boundary rather than relying on the client not to read them.

Frequently Asked Questions

The Fastly CDN module before 1.2.26 for Magento2, when used with a third-party authentication plugin, might allow remote authenticated users to obtain sensitive information from authenticated sessions via vectors involving caching of redirect responses.
O3 Security · Impact-Aware SCA

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CVE-2017-13761: magento2 — Fixed in 1.2.26