Apache Traffic Server 2.0.x and 3.0.x before 3.0.4 and 3.1.x before 3.1.3 does not…
Priority LOW 29CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
Apache Traffic Server 2.0.x and 3.0.x before 3.0.4 and 3.1.x before 3.1.3 does not properly allocate heap memory, which allows remote attackers to cause a denial of service (daemon crash) via a long HTTP Host header.
Why it matters now
EPSS 0.03434 89th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 20
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:traffic_server:2.0.0:*:*:*:*:*:*:* | 2.0.0 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:2.0.0:alpha:*:*:*:*:*:* | 2.0.0 alpha | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:2.0.1:*:*:*:*:*:*:* | 2.0.1 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:2.1.0:*:*:*:*:*:*:* | 2.1.0 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:2.1.1:*:*:*:*:*:*:* | 2.1.1 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:2.1.2:*:*:*:*:*:*:* | 2.1.2 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:2.1.3:*:*:*:*:*:*:* | 2.1.3 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:2.1.4:*:*:*:*:*:*:* | 2.1.4 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:2.1.5:*:*:*:*:*:*:* | 2.1.5 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:2.1.6:*:*:*:*:*:*:* | 2.1.6 | Vulnerable | Apache |
- cpe:2.3:a:apache:traffic_server:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:2.0.0:alpha:*:*:*:*:*:* Versions 2.0.0 alpha Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:2.0.1:*:*:*:*:*:*:* Versions 2.0.1 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:2.1.0:*:*:*:*:*:*:* Versions 2.1.0 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:2.1.1:*:*:*:*:*:*:* Versions 2.1.1 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:2.1.2:*:*:*:*:*:*:* Versions 2.1.2 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:2.1.3:*:*:*:*:*:*:* Versions 2.1.3 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:2.1.4:*:*:*:*:*:*:* Versions 2.1.4 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:2.1.5:*:*:*:*:*:*:* Versions 2.1.5 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:2.1.6:*:*:*:*:*:*:* Versions 2.1.6 Vulnerable ·Apache
Show 10 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:traffic_server:2.1.7:*:*:*:*:*:*:* | 2.1.7 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:2.1.8:*:*:*:*:*:*:* | 2.1.8 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:2.1.9:*:*:*:*:*:*:* | 2.1.9 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:3.0.0:*:*:*:*:*:*:* | 3.0.0 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:3.0.1:*:*:*:*:*:*:* | 3.0.1 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:3.0.2:*:*:*:*:*:*:* | 3.0.2 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:3.0.3:*:*:*:*:*:*:* | 3.0.3 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:3.1.0:*:*:*:*:*:*:* | 3.1.0 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:3.1.1:*:*:*:*:*:*:* | 3.1.1 | Vulnerable | Apache |
| cpe:2.3:a:apache:traffic_server:3.1.2:*:*:*:*:*:*:* | 3.1.2 | Vulnerable | Apache |
- cpe:2.3:a:apache:traffic_server:2.1.7:*:*:*:*:*:*:* Versions 2.1.7 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:2.1.8:*:*:*:*:*:*:* Versions 2.1.8 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:2.1.9:*:*:*:*:*:*:* Versions 2.1.9 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:3.0.0:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:3.0.1:*:*:*:*:*:*:* Versions 3.0.1 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:3.0.2:*:*:*:*:*:*:* Versions 3.0.2 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:3.0.3:*:*:*:*:*:*:* Versions 3.0.3 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:3.1.0:*:*:*:*:*:*:* Versions 3.1.0 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:3.1.1:*:*:*:*:*:*:* Versions 3.1.1 Vulnerable ·Apache
- cpe:2.3:a:apache:traffic_server:3.1.2:*:*:*:*:*:*:* Versions 3.1.2 Vulnerable ·Apache
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-0256
- 2026-10-03 Alias added: GHSA-j695-8g8p-qf2x
References
More Apache Traffic Server vulnerabilities
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2024-20685 Apache Traffic Server: HTTP/2 CONTINUATION frames can be utilized for DoS attack CVSS 3.1HIGH 7.5
- TI-2019-06950 Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a… CVSS 3.1HIGH 7.5
- TI-2019-06949 Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a… CVSS 3.1HIGH 7.5
- TI-2019-06947 Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a… CVSS 3.1HIGH 7.5
- TI-2023-20588 Apache Traffic Server: Malformed http/2 frames can cause an abort CVSS 3.1HIGH 7.5
Sources
- CVE-2012-0256 · CVE Program
- CVE-2012-0256 · NVD
- FIRST EPSS
- GHSA-j695-8g8p-qf2x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences