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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-31824

21
FAUCET Score

CVE-2026-31824 describes a Time-of-Check To Time-of-Use (TOCTOU) race condition in Sylius, an Open Source eCommerce Framework. This flaw allows unauthenticated attackers to bypass promotion and coupon usage limits by sending simultaneous requests, enabling unlimited redemption of otherwise restricted offers. While the attack complexity is high, successful exploitation can lead to significant financial loss for businesses. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.9.12CPE matchmatch criteria
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
>= 1.10.0, < 1.10.16CPE matchmatch criteria
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
>= 1.11.0, < 1.11.17CPE matchmatch criteria
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
>= 1.12.0, < 1.12.23CPE matchmatch criteria
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*
>= 1.13.0, < 1.13.15CPE matchmatch criteria
cpe:2.3:a:sylius:sylius:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.2HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 1st percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

composerpatch availablevia ghsa
Product: sylius/syliusFixed in: 1.9.12
composerpatch availablevia ghsa
Product: sylius/syliusFixed in: 1.10.16
composerpatch availablevia ghsa
Product: sylius/syliusFixed in: 1.11.17
composerpatch availablevia ghsa
Product: sylius/syliusFixed in: 1.12.23
composerpatch availablevia ghsa
Product: sylius/syliusFixed in: 1.13.15
composerpatch availablevia ghsa
Product: sylius/syliusFixed in: 1.14.18
composerpatch availablevia ghsa
Product: sylius/syliusFixed in: 2.0.16
composerpatch availablevia ghsa
Product: sylius/syliusFixed in: 2.1.12
composerpatch availablevia ghsa
Product: sylius/syliusFixed in: 2.2.3

Vendor Advisories (1)

composerGHSA-7mp4-25j8-hp5qhigh

Sylius has a Promotion Usage Limit Bypass via Race Condition

Mar 11, 2026

References

github.com / Sylius/Sylius/security/advisories/GHSA-7mp4-25j8-hp5q
MitigationVendor Advisory