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VulnerabilityPublished

CVE-2026-61652: kap-sh zapros · Unthrottled Resource Allocation

Affects kap-sh zaprosSource CVE Database V5

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Not known to be exploited · CVSS 8.7 High : upgrade to 0.14.0 soon.

Data as of 5 Nov 2026, 23:24 UTC

CVSS 4.0 base score
8.7High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.14.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 5 Nov 2026.

What to do

Upgrade kap-sh zapros to 0.14.0.

Affected software

ProductAffectedFixed in
kap-shzaprosAffected
  • <0.14.0
Fixed in
  • 0.14.0
PyPIzaprospkg:pypi/zaprosOther threatsAffected
  • <0.14.0
Fixed in
  • 0.14.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Version 0.14.0 of zapros contains an official fix and should be applied to remediate this vulnerability. Until upgrading, users can mitigate the issue by reading the compressed response body using Response.iter_raw() or Response.async_iter_raw() to bypass the built-in decoders and decompress manually with explicit output-size bounds (e.g., using zlib's max_length). Additionally, sending the Accept-Encoding: identity header disables response compression and avoids client-side decompression. Avoid decoding response bodies from untrusted servers.

Description

Zapros, a Python HTTP client, has a denial of service vulnerability prior to version 0.14.0 caused by memory exhaustion when processing compressed HTTP responses. The issue arises because the decoder does not respect the chunk size limit, allowing a single compressed response to consume excessive memory. Version 0.14.0 includes a patch to address this vulnerability. Workarounds include manually decompressing the response with explicit output-size limits or disabling compression by sending the Accept-Encoding: identity header.

References

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