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CVE-2026-53430

Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-grpc grpc (GRPC.Compressor.Gzip, GRPC.Message modules) allows a denial of service via a gzip decompression bomb. This vulnerability is associated with program files lib/grpc/compressor/gzip.ex, lib/grpc/message.ex and program routines 'Elixir.GRPC.Compressor.Gzip':decompress/1, 'Elixir.GRPC.Message':from_data/2. 'Elixir.GRPC.Compressor.Gzip':decompress/1 calls :zlib.gunzip/1 directly on attacker-controlled
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b5b6fcbbd8e968221e5729721cbd1fe759afbba884f08e52c0afb6f262d8e29b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.GRPC.Compressor.Gzip'","'Elixir.GRPC.Message'"],"packageName":"elixir-grpc/grpc","packageURL":"pkg:github/elixir-grpc/grpc","product":"grpc","programFiles":["lib/grpc/compressor/gzip.ex","lib/grpc/message.ex"],"programRoutines":[{"name":"'Elixir.GRPC.Compressor.Gzip':decompress/1"},{"name":"'Elixir.GRPC.Message':from_data/2"}],"repo":"https://github.com/elixir-grpc/grpc","vendor":"elixir-grpc","versions":[{"lessThan":"1afbab9d57d2a3e16ca9c62ffa4923338ea96…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ed9d4130432f4579ad7e7dfb93a00e9c4b6c87158647c6169ff6122505c7e830 · sha256:58e826510b3b2ee9… · /containers/cna/affected/1

{"collectionURL":"https://hex.pm","cpes":["cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.GRPC.Compressor.Gzip'","'Elixir.GRPC.Message'"],"packageName":"grpc","packageURL":"pkg:hex/grpc","product":"grpc","programFiles":["lib/grpc/compressor/gzip.ex","lib/grpc/message.ex"],"programRoutines":[{"name":"'Elixir.GRPC.Compressor.Gzip':decompress/1"},{"name":"'Elixir.GRPC.Message':from_data/2"}],"repo":"https://github.com/elixir-grpc/grpc","vendor":"elixir-grpc","versions":[{"lessThan":"1.0.0","status":"affected","version":"0.4.0","versionType":"semver"}…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ed9d4130432f4579ad7e7dfb93a00e9c4b6c87158647c6169ff6122505c7e830 · sha256:58e826510b3b2ee9… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.GRPC.Compressor.Gzip'","'Elixir.GRPC.Message'"],"packageName":"elixir-grpc/grpc","packageURL":"pkg:github/elixir-grpc/grpc","product":"grpc","programFiles":["lib/grpc/compressor/gzip.ex","lib/grpc/message.ex"],"programRoutines":[{"name":"'Elixir.GRPC.Compressor.Gzip':decompress/1"},{"name":"'Elixir.GRPC.Message':from_data/2"}],"repo":"https://github.com/elixir-grpc/grpc","vendor":"elixir-grpc","versions":[{"lessThan":"1afbab9d57d2a3e16ca9c62ffa4923338ea96…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ed9d4130432f4579ad7e7dfb93a00e9c4b6c87158647c6169ff6122505c7e830 · sha256:58e826510b3b2ee9… · /containers/cna/affected/1
{"collectionURL":"https://hex.pm","cpes":["cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.GRPC.Compressor.Gzip'","'Elixir.GRPC.Message'"],"packageName":"grpc","packageURL":"pkg:hex/grpc","product":"grpc","programFiles":["lib/grpc/compressor/gzip.ex","lib/grpc/message.ex"],"programRoutines":[{"name":"'Elixir.GRPC.Compressor.Gzip':decompress/1"},{"name":"'Elixir.GRPC.Message':from_data/2"}],"repo":"https://github.com/elixir-grpc/grpc","vendor":"elixir-grpc","versions":[{"lessThan":"1.0.0","status":"affected","version":"0.4.0","versionType":"semver"}…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ed9d4130432f4579ad7e7dfb93a00e9c4b6c87158647c6169ff6122505c7e830 · sha256:58e826510b3b2ee9… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ed9d4130432f4579ad7e7dfb93a00e9c4b6c87158647c6169ff6122505c7e830 · sha256:58e826510b3b2ee9… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-409","description":"CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ed9d4130432f4579ad7e7dfb93a00e9c4b6c87158647c6169ff6122505c7e830 · sha256:58e826510b3b2ee9… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-53430.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ed9d4130432f4579ad7e7dfb93a00e9c4b6c87158647c6169ff6122505c7e830 · sha256:58e826510b3b2ee9… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/elixir-grpc/grpc/commit/1afbab9d57d2a3e16ca9c62ffa4923338ea96cfc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ed9d4130432f4579ad7e7dfb93a00e9c4b6c87158647c6169ff6122505c7e830 · sha256:58e826510b3b2ee9… · /containers/cna/references/3
{"tags":["exploit"],"url":"https://github.com/elixir-grpc/grpc/security/advisories/GHSA-6ccx-9c9f-327w"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ed9d4130432f4579ad7e7dfb93a00e9c4b6c87158647c6169ff6122505c7e830 · sha256:58e826510b3b2ee9… · /containers/adp/0/references/0
{"tags":["vendor-advisory","related"],"url":"https://github.com/elixir-grpc/grpc/security/advisories/GHSA-6ccx-9c9f-327w"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ed9d4130432f4579ad7e7dfb93a00e9c4b6c87158647c6169ff6122505c7e830 · sha256:58e826510b3b2ee9… · /containers/cna/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-53430"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ed9d4130432f4579ad7e7dfb93a00e9c4b6c87158647c6169ff6122505c7e830 · sha256:58e826510b3b2ee9… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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