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CVE-2026-74835

inets,httpd: Memory Exhaustion via Unenforced max_body_size During Chunked Body Reception

HIGH
8.7
CVSS Score
Published: September 1, 2026 at 02:45 PM UTC
Updated: September 8, 2026 at 01:17 AM UTC
1 product affected across 1 vendorErlang /otp

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Severity
HIGH8.7
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

The inets application HTTP server httpd fails to enforce a configured body-size limit on chunked request. This issue affects OTP from OTP 17.0 before OTP 27.3.4.17, from OTP 28.0 before OTP 28.5.0.6, and from OTP 29.0 before OTP 29.0.6, corresponding to inets from 5.10 before 9.3.2.7, from 9.4 before 9.6.2.3, and from 9.7 before 9.7.2. Whether OTP before OTP 17.0, corresponding to inets before 5.10, is affected is unknown.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Erlang /otp· Erlang
95%
v < 27.3.4.1717.0 ≤ v < 27.3.4.1728.0 ≤ v < 28.5.0.629.0 ≤ v < 29.0.65.10 ≤ v < 9.3.2.79.4 ≤ v < 9.6.2.39.7 ≤ v < 9.7.217.028.029.05.1084adefa331c4159d432d22840663c38f155cd4c19.49.7
Affected range stops below 27.3.4.17, so it looks safe — our inference, not a vendor statement
Affected range stops below 28.5.0.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 29.0.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.3.2.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.6.2.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.7.2, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 17.0 (unknown)
Vendor states this is fixed in 5.10 (unknown)

References (6)

Vendor Advisory
Source: cverecord
https://github.com/erlang/otp/security/advisories/GHSA-8qrh-x566-5xv5
Related
Source: cverecord
https://cna.erlef.org/cves/CVE-2026-74835.html
Related
Source: cverecord
https://osv.dev/vulnerability/EEF-CVE-2026-74835
Patch
Source: cverecord
https://github.com/erlang/otp/commit/0bceff0c2987cae83d9d4a77c5ecacd6d01b8b86
Patch
Source: cverecord
https://github.com/erlang/otp/commit/8e1ca42b64df6c41306affbe8dc129bdbd4042c7
Patch
Source: cverecord
https://github.com/erlang/otp/commit/7f9c460d1818c2afb78fbd01f8d8b81343bbb011

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHEEF
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-770

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