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CVE-2026-21619

Uncontrolled Resource Consumption, Deserialization of Untrusted Data vulnerability in hexpm hex_core (hex_api modules), hexpm hex (mix_hex_api modules), erlang rebar3 (r3_hex_api modules) allows Object Injection, Excessive Allocation. This vulnerability is associated with program files src/hex_api.erl, src/mix_hex_api.erl, apps/rebar/src/vendored/r3_hex_api.erl and program routines hex_core:request/4, mix_hex_api:request/4, r3_hex_api:request/4. This issue affects hex_core: from 0.1.0 before 0.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d2cda7ff00df17caaf76b403b21d32aa96909911ebd4215b823aca75a97bcaaa
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 6 assertions

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:erlang:rebar3:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["r3_hex_api"],"packageName":"erlang/rebar3","packageURL":"pkg:github/erlang/rebar3","product":"rebar3","programFiles":["apps/rebar/src/vendored/r3_hex_api.erl"],"programRoutines":[{"name":"r3_hex_api:request/4"}],"repo":"https://github.com/erlang/rebar3","vendor":"erlang","versions":[{"lessThan":"1d4478f527e373de0b225951e53115450e0d9b9d","status":"affected","version":"209c02ec57c2cc3207ee0174c3af3675b8dc8f79","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/affected/4

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:hexpm:hex_core:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["hex_api"],"packageName":"hexpm/hex_core","packageURL":"pkg:github/hexpm/hex_core","product":"hex_core","programFiles":["src/hex_api.erl"],"programRoutines":[{"name":"hex_core:request/4"}],"repo":"https://github.com/hexpm/hex_core","vendor":"hexpm","versions":[{"lessThan":"cdf726095bca85ad2549d146df1e831ae93c2b13","status":"affected","version":"eb327f8edfe45507351e38cc0805aa12fa647f0b","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/affected/0

{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:hexpm:hex_core:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["hex_api"],"packageName":"hex_core","packageURL":"pkg:hex/hex_core","product":"hex_core","programFiles":["src/hex_api.erl"],"programRoutines":[{"name":"hex_core:request/4"}],"repo":"https://github.com/hexpm/hex_core","vendor":"hexpm","versions":[{"lessThan":"0.12.1","status":"affected","version":"0.1.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/affected/1

{"cpes":["cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["mix_hex_api"],"packageName":"hex","packageURL":"pkg:otp/hex?repository_url=https:%2F%2Fgithub.com%2Fhexpm%2Fhex.git&vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Fhexpm%2Fhex.git","product":"hex","programFiles":["src/mix_hex_api.erl"],"programRoutines":[{"name":"mix_hex_api:request/4"}],"repo":"https://github.com/hexpm/hex","vendor":"hexpm","versions":[{"lessThan":"2.3.2","status":"affected","version":"2.3.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/affected/3

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:erlang:rebar3:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["r3_hex_api"],"packageName":"rebar3","packageURL":"pkg:otp/rebar3?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Frebar3.git&vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Ferlang%2Frebar3.git","product":"rebar3","programFiles":["apps/rebar/src/vendored/r3_hex_api.erl"],"programRoutines":[{"name":"r3_hex_api:request/4"}],"repo":"https://github.com/erlang/rebar3","vendor":"erlang","versions":[{"lessThan":"3.27.0","status":"affected","version":"3.9.1","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/affected/5

{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["mix_hex_api"],"packageName":"hexpm/hex","packageURL":"pkg:github/hexpm/hex","product":"hex","programFiles":["src/mix_hex_api.erl"],"programRoutines":[{"name":"mix_hex_api:request/4"}],"repo":"https://github.com/hexpm/hex","vendor":"hexpm","versions":[{"lessThan":"636739f3322514e9303ca335fb630696fcbb3c95","status":"affected","version":"314546ac432229518714cc8e3336e916b9da6305","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/affected/2
cwe · 2 assertions

{"cweId":"CWE-502","description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

6 source assertions
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:erlang:rebar3:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["r3_hex_api"],"packageName":"erlang/rebar3","packageURL":"pkg:github/erlang/rebar3","product":"rebar3","programFiles":["apps/rebar/src/vendored/r3_hex_api.erl"],"programRoutines":[{"name":"r3_hex_api:request/4"}],"repo":"https://github.com/erlang/rebar3","vendor":"erlang","versions":[{"lessThan":"1d4478f527e373de0b225951e53115450e0d9b9d","status":"affected","version":"209c02ec57c2cc3207ee0174c3af3675b8dc8f79","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/affected/4
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:hexpm:hex_core:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["hex_api"],"packageName":"hexpm/hex_core","packageURL":"pkg:github/hexpm/hex_core","product":"hex_core","programFiles":["src/hex_api.erl"],"programRoutines":[{"name":"hex_core:request/4"}],"repo":"https://github.com/hexpm/hex_core","vendor":"hexpm","versions":[{"lessThan":"cdf726095bca85ad2549d146df1e831ae93c2b13","status":"affected","version":"eb327f8edfe45507351e38cc0805aa12fa647f0b","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/affected/0
{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:hexpm:hex_core:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["hex_api"],"packageName":"hex_core","packageURL":"pkg:hex/hex_core","product":"hex_core","programFiles":["src/hex_api.erl"],"programRoutines":[{"name":"hex_core:request/4"}],"repo":"https://github.com/hexpm/hex_core","vendor":"hexpm","versions":[{"lessThan":"0.12.1","status":"affected","version":"0.1.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/affected/1
{"cpes":["cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["mix_hex_api"],"packageName":"hex","packageURL":"pkg:otp/hex?repository_url=https:%2F%2Fgithub.com%2Fhexpm%2Fhex.git&vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Fhexpm%2Fhex.git","product":"hex","programFiles":["src/mix_hex_api.erl"],"programRoutines":[{"name":"mix_hex_api:request/4"}],"repo":"https://github.com/hexpm/hex","vendor":"hexpm","versions":[{"lessThan":"2.3.2","status":"affected","version":"2.3.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/affected/3
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:erlang:rebar3:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["r3_hex_api"],"packageName":"rebar3","packageURL":"pkg:otp/rebar3?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Frebar3.git&vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Ferlang%2Frebar3.git","product":"rebar3","programFiles":["apps/rebar/src/vendored/r3_hex_api.erl"],"programRoutines":[{"name":"r3_hex_api:request/4"}],"repo":"https://github.com/erlang/rebar3","vendor":"erlang","versions":[{"lessThan":"3.27.0","status":"affected","version":"3.9.1","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/affected/5
{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:hexpm:hex:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["mix_hex_api"],"packageName":"hexpm/hex","packageURL":"pkg:github/hexpm/hex","product":"hex","programFiles":["src/mix_hex_api.erl"],"programRoutines":[{"name":"mix_hex_api:request/4"}],"repo":"https://github.com/hexpm/hex","vendor":"hexpm","versions":[{"lessThan":"636739f3322514e9303ca335fb630696fcbb3c95","status":"affected","version":"314546ac432229518714cc8e3336e916b9da6305","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/affected/2

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":2,"baseSeverity":"LOW","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-502","description":"CWE-502 Deserialization of Untrusted Data","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-21619.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/references/1
{"tags":["patch"],"url":"https://github.com/erlang/rebar3/commit/1d4478f527e373de0b225951e53115450e0d9b9d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/references/5
{"tags":["patch"],"url":"https://github.com/hexpm/hex/commit/636739f3322514e9303ca335fb630696fcbb3c95"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/references/4
{"tags":["patch"],"url":"https://github.com/hexpm/hex_core/commit/cdf726095bca85ad2549d146df1e831ae93c2b13"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/references/3
{"tags":["vendor-advisory","related"],"url":"https://github.com/hexpm/hex_core/security/advisories/GHSA-hx9w-f2w9-9g96"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /containers/cna/references/0
{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-21619"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7d5575e12edf6e17953d9133e6a71155c67cdd8744912ed8ab22c1ab5622709e · sha256:4c702bfe075b2252… · /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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