Process denial of service via unbounded response reads
Published May 12, 2026 · Updated May 12, 2026
Resource exhaustion in Jo-Jo98 ciguard 0.6.0 through 0.8.1 allows remote attackers to interrupt the process via oversized SCA responses. The OSV and endoflife.date clients pass each entire HTTP response from resp.read() into UTF-8 decoding and JSON parsing without enforcing a maximum body size. Exploitation requires control of a hardcoded HTTPS upstream or a successful TLS man-in-the-middle position and can trigger an out-of-memory kill or system swap thrashing.
Summary
What happened
Resource exhaustion in Jo-Jo98 ciguard 0.6.0 through 0.8.1 allows remote attackers to interrupt the process via oversized SCA responses. The OSV and endoflife.date clients pass each entire HTTP response from resp.read() into UTF-8 decoding and JSON parsing without enforcing a maximum body size. Exploitation requires control of a hardcoded HTTPS upstream or a successful TLS man-in-the-middle position and can trigger an out-of-memory kill or system swap thrashing.
The record
- CVE
- CVE-2026-44219
- Published
- May 12, 2026
- Updated
- May 12, 2026
- Vendor
- Jo-Jo98
- Product
- ciguard
- Classifications
- CWE-770, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 12, 2026CVE publishedPublication date reported by the CVE source.
- May 12, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>= 0.6.0, < 0.8.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Advisory memory-exhaustion reproductionproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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