CVE-2026-24320VulnerabilityPublished 10 Feb 2026

CVE-2026-24320: SAP NetWeaver and ABAP Platform (Application Server ABAP) · Improper Neutralization of CRLF Sequences in HTTP Headers

Affects SAP NetWeaver and ABAP Platform (Application Server ABAP)Source CVE Database V5

Not known to be exploited · CVSS 3.1 Low.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score

3.1Low

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 18% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: High
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: High: A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected. For example, a successful attack may require an attacker to: gather knowledge about the environment in which the vulnerable target/component exists; prepare the target environment to improve exploit reliability; or inject themselves into the logical network path between the target and the resource requested by the victim in order to read and/or modify network communications (e.g., a man in the middle attack).
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 10 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
SAP_SESAP NetWeaver and ABAP Platform (Application Server ABAP)	Affected =7.22EXT =7.53 =8.04 =7.54 =7.77 =7.89 =7.93 =9.16 =9.17 =9.18	Fixed in–

AI-suggested

European organizations should implement the following specific mitigations: 1) Conduct a thorough inventory of SAP NetWeaver and ABAP Platform versions in use to identify affected systems. 2) Restrict and monitor authenticated access to SAP systems, enforcing strict access controls and multi-factor authentication to reduce the risk of attacker exploitation. 3) Implement network segmentation and firewall rules to limit exposure of SAP servers to only trusted internal networks and users. 4) Enable detailed logging and monitoring of SAP system activities to detect anomalous behavior indicative of exploitation attempts. 5) Regularly review and sanitize input handling in custom SAP applications to prevent injection of malicious CRLF sequences. 6) Stay informed on SAP security advisories and apply official patches or updates promptly once released. 7) Conduct internal security assessments and penetration tests focusing on SAP environments to identify potential exploitation paths. 8) Educate SAP administrators and users about the vulnerability and the importance of secure credential management. These targeted actions go beyond generic advice by focusing on access control, monitoring, and proactive system hygiene tailored to SAP environments.

Description

CVE-2026-24320 is a low-severity vulnerability in SAP NetWeaver and ABAP Platform (Application Server ABAP) caused by improper neutralization of CRLF sequences in HTTP headers, leading to memory corruption and potential leakage of memory content. The flaw arises from logical errors in memory management when processing specially crafted input containing unique characters. Exploitation requires an authenticated attacker with low privileges and does not require user interaction. The vulnerability impacts confidentiality slightly but does not affect integrity or availability. No known exploits are currently reported in the wild. Multiple versions of SAP NetWeaver and ABAP Platform, including widely used releases, are affected. European organizations using these SAP products should assess their exposure and apply mitigations promptly. Due to the low CVSS score (3.1) and limited impact, the threat is not critical but still warrants attention to prevent information disclosure. Countries with significant SAP enterprise deployments, such as Germany and the UK, are most likely to be affected.

Impact

For European organizations, the primary impact of CVE-2026-24320 is the potential leakage of sensitive memory content from SAP NetWeaver and ABAP Platform systems. Given SAP's widespread use in critical business processes across Europe, even a low-impact confidentiality breach can have significant business implications, including exposure of sensitive corporate data or credentials. However, the vulnerability does not affect system integrity or availability, reducing the risk of operational disruption. The requirement for attacker authentication limits exposure to insider threats or compromised accounts. Organizations in sectors with high SAP adoption, such as manufacturing, finance, and public administration, may face increased risk. Additionally, the vulnerability could be leveraged as a stepping stone for more sophisticated attacks if combined with other vulnerabilities. The absence of known exploits reduces immediate risk but does not eliminate the need for vigilance. Overall, the impact is moderate in the European context, emphasizing the importance of timely detection and mitigation to protect sensitive enterprise data.

CWE-113Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') (opens in a new tab)
Variant weaknessOWASP Top 10 A05:2025: Injection (opens in a new tab)
The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.), but it does not neutralize or incorrectly neutralizes CR and LF characters before the data is included in outgoing HTTP headers.
Implementation · Input Validation
Construct HTTP headers very carefully, avoiding the use of non-validated input data.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. If an input does not strictly conform to specifications, reject it or transform it into something that conforms.
Implementation · Output Encoding
Use and specify an output encoding that can be handled by the downstream component that is reading the output. Common encodings include ISO-8859-1, UTF-7, and UTF-8.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
Injection Prevention (opens in a new tab)
SQL Injection Prevention (opens in a new tab)
Injection Prevention in Java (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
Attack patterns
HTTP Request Splitting (opens in a new tab)
Accessing/Intercepting/Modifying HTTP Cookies (opens in a new tab)
HTTP Response Splitting (opens in a new tab)
AJAX Footprinting (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 17 Feb 2026, 09:41 UTC

WeaknessesCWE-113

Technical details

References

Community reviews

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