Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-8vp7-j5cj-vvm2

Ability to expose data in Sylius by using an unintended serialisation group

CVSS 4.4 MediumEPSS 0.0074 · 54th percentile

Published by the GitHub Advisory Database at 31 Jan 2020, 18:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
sylius/resource-bundlePackagist>=1.4.0, <1.4.6 || >=1.5.0, <1.5.1 || >=1.6.0, <1.6.3 || >=1.0.0, <1.3.131.4.6, 1.5.1, 1.6.3, 1.3.13
sylius/syliusPackagist<1.3.12 || >=1.4.0, <1.4.41.3.12, 1.4.4
Identifiers
GHSA-8vp7-j5cj-vvm2 · CVE-2020-5218 · CVE-2020-5220 · GHSA-prg5-hg25-8grq · PKSA-3b3k-ptfz-1wwy · PKSA-bpp9-7wqw-wr8k · PKSA-sjsn-7352-ttw3
Weakness (CWE)
CWE-200 · CWE-444
Tags
Published
31 Jan 2020
Updated
8 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Sylius resource-bundle versions before 1.3.13, from 1.4.0 before 1.4.6, 1.5.0 before 1.5.1, and 1.6.0 before 1.6.3 accept arbitrary serialisation groups passed through an HTTP header. An attacker who can reach an API built on the bundle's controller can use a more permissive group, such as one from the Admin API on the Shop API, and so expose data. Upgrade sylius/resource-bundle to 1.3.13, 1.4.6, 1.5.1, or 1.6.3. Users with custom groups sent via the header must add them to allowed_serialization_groups, as the fix breaks backward compatibility.

Written 3 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
4.4 Medium 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0074, the 54th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:25 UTC First seen by agentprime
  2. 31 Oct 2026, 14:25 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.