Exploitation ongoing with high activity in latest observed window (1 mentions)
Recommended action window: Immediate (within 24h)
NVD description
Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows unauthenticated memory exhaustion via oversized HTTP/2 frames. 'Elixir.Bandit.HTTP2.Frame':deserialize/2 in lib/bandit/http2/frame.ex checks the SETTINGS_MAX_FRAME_SIZE limit only after pattern-matching payload::binary-size(length), which requires the entire frame body to be present in memory before either the accept or reject clause can fire. A peer that announces a frame length up to the 24-bit maximum (~16 MiB) causes the server to buffer that entire body before the size guard is evaluated, regardless of the max_frame_size negotiated during the HTTP/2 handshake (default 16 KiB per RFC 9113). An unauthenticated attacker holding many concurrent connections can force the server to buffer far more memory than the negotiated frame size limit should permit, leading to memory pressure and potential denial of service. This issue affects bandit: from 0.3.6 before 1.11.0.
Priority
LOW
Exploitation
ACTIVE
PoC
NONE
Patch
NONE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-05-01 | 2 | Disclosure1General1 |
| 2026-05-02 | 1 | Disclosure1 |
| 2026-05-03 | 1 | Active Exploitation1 |
Our CTI team identified a lot of activities targeting mtrudel bandit (CVE-2026-42788) https://vuldb.com/vuln/360790/cti
Post summary
CTI team has detected numerous attacks targeting CVE-2026-42788 against mtrudel bandit, indicating active exploitation in the wild.
CVE-2026-42788 Unauthenticated Memory Exhaustion via Oversized HTTP/2 Frames in Bandit https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-42788
Post summary
The text announces CVE-2026‑42788 as a memory exhaustion vulnerability in Bandit triggered by oversized HTTP/2 frames, but offers no PoC, exploit, patch, or activity claims.
🚨*CVE* CVE-2026-42788 Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows unauthenticated memory exhaustion via oversized HTTP/2 frames. 'http://Elixir.Ba… https://www.cve.org/CVERecord?id=CVE-2026-42788 ----- Traducción: CVE-… http://infoflow.cloud`
Post summary
The post briefly announces CVE‑2026‑42788, describing a memory‑exhaustion vulnerability through oversized HTTP/2 frames, but provides no PoC, exploit code, patch, or evidence of active exploitation.
CVE-2026-42788 Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows unauthenticated memory exhaustion via oversized HTTP/2 frames. 'http://Elixir.Ba… https://www.cve.org/CVERecord?id=CVE-2026-42788
Post summary
The text announces a new vulnerability (CVE-2026-42788) in mtrudel bandit that can cause memory exhaustion via oversized HTTP/2 frames, providing only basic technical details without any PoC, exploit code, or mitigation information.