CVE-2024-12397: quarkus-http · HTTP Request/Response Smuggling
Affects quarkus-httpSource GCVE Database
Not known to be exploited · CVSS 7.4 High.
Data as of 30 Oct 2026, 20:25 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 7.4 |
|---|
- EPSS
- 0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 12 Dec 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| quarkus-http | Affected
| Fixed in– |
Description
A flaw was found in Quarkus-HTTP, which incorrectly parses cookies with certain value-delimiting characters in incoming requests. This issue could allow an attacker to construct a cookie value to exfiltrate HttpOnly cookie values or spoof arbitrary additional cookie values, leading to unauthorized data access or modification. The main threat from this flaw impacts data confidentiality and integrity.
References
- access.redhat.com/errata/RHBA-2025:7525 (opens in a new tab)
- access.redhat.com/errata/RHBA-2025:7639 (opens in a new tab)
- access.redhat.com/errata/RHSA-2025:0900 (opens in a new tab)
- access.redhat.com/errata/RHSA-2025:3018 (opens in a new tab)
- access.redhat.com/errata/RHSA-2025:8761 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2024-12397 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2331298 (opens in a new tab)